Granfondo Campagnolo Roma does something no other major Italian gran fondo manages: it places you on the roads around Rome's historic centre at dawn, routes you through the southern suburbs on fast tarmac, and then throws you into the volcanic hills of the Castelli Romani where the gradients turn steep and the smooth Roman roads give way to narrow, twisting Italian climbing. The contrast between the two halves of the course — urban and flat, then rural and vertical — creates a pacing problem that catches more riders than the climbing itself.
The event covers approximately 145km with 2,200m of elevation gain, which sits comfortably below the numbers posted by the Alpine monsters. But the profile is deceptive. Those 2,200 metres are compressed into a 60km stretch of the Alban Hills where four or five proper climbs arrive in quick succession, with Rocca di Papa — 4.5km at 7.5% average with a 14% maximum pitch on volcanic terrain — acting as the decisive test. The riders who arrive at Rocca di Papa with measured legs and a plan ride it. The riders who spent themselves in the suburban bunch or misjudged the earlier climbs walk it.
This guide follows the framework we use with riders inside Not Done Yet who are targeting Granfondo Roma and comparable mid-distance Italian events. The training is built for the specific demands — flat-to-steep transitions, short but punchy climbing, October warmth — and the pacing strategy reflects what actually happens when 5,000 riders hit the Castelli Romani after 40km of flat racing.
What Makes Granfondo Roma Different
The flat-to-climb transition. For the first 40 kilometres, the course rolls through Rome's southern suburbs on wide, well-surfaced roads. The bunch is fast, nervous, and large. Italian gran fondo starts are famously aggressive, and Roma is no exception — riders treat the flat opening like a criterium, surging on roundabouts, chasing wheels, riding at 38-42km/h in tight groups. This is where the event is quietly lost for dozens of riders who arrive at the first climb with their glycogen half-spent and their heart rate already sitting in Zone 3. The flat section is not the warm-up. It is the first tactical test.
The Castelli Romani. The Alban Hills south of Rome are the remnants of a volcanic complex — the Vulcano Laziale — that last erupted roughly 36,000 years ago. The terrain this created is unlike anything in the Alps or Dolomites. The roads climb steeply through chestnut forests on volcanic soil, the gradients are irregular rather than steady, and the surfaces shift from smooth tarmac to rougher local roads without warning. The climbs are short by Alpine standards — 2.5 to 4.5 kilometres — but they are steep, and they arrive one after another across a 40km stretch with only brief descents between them. The total climbing is not extreme. The density of climbing is.
The October conditions. Mid-October in the hills south of Rome means temperatures of 18-24 degrees Celsius — warm enough to demand a hydration strategy, cool enough that you will not be cooking. This is a significant advantage for riders coming from northern European autumn training. The warmth is manageable rather than oppressive, the daylight is sufficient, and the lack of extreme heat or cold simplifies equipment choices. For riders considering their first Italian gran fondo, the October window is more forgiving than the May-June timing of Nove Colli or the Maratona.
The atmosphere. Starting a bike race on the roads around Rome is an experience that exists outside normal sportive parameters. The early morning light on the ancient city, the police escorts through the suburbs, the gradual transition from urban chaos to rural Italian countryside, and the return to Rome for the finish — there is a theatrical quality to the event that rewards fitness. You want to be strong enough to look up from your stem on the approach to Rocca di Papa and register that you are climbing a volcanic hill in the Roman hinterland, not strong enough merely to survive it.
The Key Climbs: Know What You Are Facing
The Castelli Romani climbs are concentrated in a roughly 40km section of the course between kilometres 45 and 110. They arrive in quick succession with short, fast descents between them — never enough recovery to fully clear the effort of the previous climb.
Rocca di Papa — The Queen Climb
4.5km at 7.5% average, 14% maximum gradient. This is where the event is decided. The climb begins gently enough — 5-6% through the lower slopes — before kicking to sustained sections above 9% in the middle third. The final kilometre includes a ramp of 14% on rough volcanic tarmac that forces even well-prepared riders out of the saddle. The gradient profile is irregular: short flat sections between steep pitches mean you are constantly adjusting effort rather than settling into a rhythm. At your target W/kg, the climb time calculator will show roughly 18-25 minutes depending on fitness — long enough that pacing matters, short enough that going too hard early has immediate consequences.
Power demand: 85-92% of FTP for a well-paced effort. The steep ramps demand brief surges to 100-105% FTP unless your gearing allows you to stay seated. Most riders will need 3.0+ W/kg to ride the steepest pitches without stopping.
Monte Cavo
3.2km at 7% average gradient. Monte Cavo rises through dense forest on the rim of the old volcanic crater. The gradient is more consistent than Rocca di Papa — a steady 6-8% without the vicious spikes — but it arrives after the earlier climbs have banked fatigue in your legs. The road is narrow and the surface is mixed, with sections of rougher tarmac that make standing efforts less comfortable. This is a rhythm climb: find your pace, hold it, and resist the temptation to accelerate when the gradient momentarily eases.
Power demand: 82-88% FTP sustained. Use the VAM calculator to check your expected climbing speed against the gradient — at 7% average, your VAM should sit between 800 and 1,100 metres per hour depending on fitness.
The Nemi Ascent
2.8km at 6.5% average gradient. Nemi sits above the lake that fills one of the volcanic craters — one of the most photogenic spots on the course if you have the composure to notice. The climb is the shortest of the major tests and the most regular in gradient: a steady 6-7% with no significant gradient spikes. It is positioned mid-loop in the Castelli Romani and often arrives when riders are already carrying fatigue from Rocca di Papa and Monte Cavo. The danger is not the gradient but the temptation to ride it too hard because it looks easy on paper. Easy climbs ridden hard in the middle of a gran fondo become expensive climbs in the final hour.
Power demand: 80-88% FTP. Treat this as a tempo climb, not a threshold effort.
The Tuscolo Climb
2.4km at 8% average gradient. Tuscolo is short and sharp. The steepest of the secondary climbs, with a gradient that sits at 8% average but includes sections above 10% in the first kilometre. The ancient Roman road surface — rough in places, with patches of cobbled texture — adds a muscular cost that smooth tarmac does not. Tuscolo often comes early enough in the climbing sequence that riders feel strong and attack it. That aggression costs them later. Hold your pacing discipline here.
Power demand: 85-92% FTP for the steeper sections, 80-85% for the more moderate stretches. The power-speed calculator will show that 2.4km at 8% costs less time than you think — there is no need to race it.
Additional Gradients
Between the main climbs, the Castelli Romani route includes several shorter ramps of 1-2km at 5-8% gradient. None of these are individually significant, but they prevent recovery. The descents between climbs are brief and technical — narrow roads, tight corners, mixed surfaces — and do not offer the long freewheeling recovery you get in Alpine events. The cumulative effect is that your legs never fully clear between efforts.
Fitness Benchmarks
Your power-to-weight ratio determines your experience more reliably than training volume, longest ride, or any other single metric. These benchmarks assume proper pacing through the flat opening and consistent fuelling.
| Target | W/kg (sustained climbing) | Approximate Finish Time | Notes | |--------|--------------------------|------------------------|-------| | Front group | 3.8+ W/kg | ~4:00-4:20 | Racing the climbs, aggressive flat pace, climbing at threshold | | Strong finish | 2.8-3.7 W/kg | ~4:30-5:30 | Well-paced, controlled flat section, climbing within limits | | Comfortable completion | 2.3-2.7 W/kg | ~5:30-6:30 | Conservative pacing, full feed zone use, steady climbing | | Finish target | 1.8-2.2 W/kg | ~6:30-7:00+ | Zone 2-3 on every climb, extended stops, survival pacing on Rocca di Papa |
These are sustained climbing watts measured across the full event — not a fresh 20-minute FTP test in a cool room. A rider who tests at 3.2 W/kg in September will produce closer to 2.8-3.0 W/kg on Rocca di Papa after 100km of riding in 22-degree heat. Factor that degradation into your targets.
Check your FTP zones against these benchmarks. The climb time calculator will translate your W/kg into expected minutes on each of the key climbs, the VAM calculator will show your climbing speed at each gradient, and the Race Predictor will give you a finish-time estimate for the full 145km.
The 12-Week Training Structure
This plan assumes you are riding 7-10 hours per week with a reasonable aerobic base — you can ride three hours at a conversational pace without it being remarkable. If you are starting from less, add four weeks of Zone 2 foundation before beginning.
Phase 1: Base (Weeks 1-4)
Volume: 7-10 hours per week. Four to five rides. Eighty per cent in Zone 2.
The base phase builds the endurance floor that allows you to ride 145km and still make power on the final climbs. The specific demand of Granfondo Roma is not extreme duration — it is the ability to produce repeated hard efforts in the second half of a moderately long day. That ability sits on top of aerobic conditioning, and shortcuts here show up as early fatigue in the Castelli Romani.
Weekly structure:
- 3-4 Zone 2 rides (60-90 minutes midweek, building the long ride on weekends)
- 1 quality session: tempo intervals, 2x15 minutes at 85-90% FTP building to 2x20 minutes by week 4
- 1 long ride building from 2.5 hours to 4 hours with 400-800m of climbing
- 1-2 gym sessions: lunges, single-leg press, step-ups, core stability, hip flexor mobility — climbing-specific muscle endurance without excessive joint loading
Key metric: By week 4, your long ride should be 4 hours with steady climbing at conversational pace and comfortable on-bike fuelling. You should be eating 60g of carbs per hour without digestive issues. If either is a stretch, extend the base phase by two weeks.
Phase 2: Build (Weeks 5-8)
Volume: 9-12 hours per week. Two quality sessions. Long rides building to 4.5-5 hours.
The build phase replicates the specific demand of the Castelli Romani: repeated climbing efforts of 8-15 minutes at threshold or just below, separated by short recovery that never allows full clearance. This is the phase where the training starts feeling like the event.
Weekly structure:
- 2 quality sessions (detailed below)
- 2-3 Zone 2 rides
- 1 long ride building to 4.5-5 hours with 1,000-1,800m of climbing
- 1 gym session (maintenance frequency — reduce from the base phase)
Quality session 1 — repeated climbing intervals: Warm up for 15 minutes, then ride 4-5 climbing intervals of 8-15 minutes at 85-95% FTP with 4-6 minutes recovery. Progression across the build phase: weeks 5-6, ride 4x10 minutes; weeks 7-8, ride 5x12 minutes or 4x15 minutes. If you have access to climbs, use them. If you are on flat terrain, use an indoor trainer with ERG mode or overgeared riding on any available gradient. This session is the backbone of the plan. The Castelli Romani climbs are exactly this pattern — hard for 10-20 minutes, brief descent, hard again.
Quality session 2 — VO2max intervals: 5x4 minutes at 106-115% FTP with 4 minutes recovery. This builds the aerobic ceiling that makes your threshold efforts sustainable. On Rocca di Papa, your FTP has degraded from the earlier climbs — a higher VO2max means you still have headroom above your degraded threshold when the gradient kicks to 14%.
The stacked weekend. At least once in weeks 6-8, ride back-to-back days: 4-4.5 hours Saturday with significant climbing, 2.5-3 hours Sunday with threshold efforts on tired legs. The Sunday session on pre-fatigued legs is the closest simulation of what Rocca di Papa feels like after 100km of riding. It is uncomfortable training. It is also the most specific preparation available.
Gradient variability work. The volcanic terrain of the Castelli Romani produces irregular gradient changes — steep ramps within moderate climbs. Once per week in the build phase, include 3-4 efforts of 10-12 minutes that alternate between 80% FTP and 100% FTP every 60-90 seconds. This trains the neuromuscular pattern of surging on steep pitches within a sustained effort. If you are climbing on real terrain, choose a climb with variable gradient. On the trainer, programme the intervals manually.
Phase 3: Sharpen (Weeks 9-10)
Volume: 9-11 hours per week. Intensity maintained. Race-simulation rides.
The sharpen phase moves from building fitness to rehearsing the event. The physical capacity is established — now you are practising pacing, fuelling execution, and the flat-to-climb transition that defines Granfondo Roma.
Week 9: Include a race-simulation ride of 4-5 hours. Ride the first 90 minutes at an easy-to-moderate pace (simulating the flat suburban section), then complete 4-5 climbing efforts of 10-15 minutes at 85-92% FTP with short recovery between them (simulating the Castelli Romani). Fuel at race rate throughout. This ride is as much a nutritional rehearsal as a fitness test.
Week 10: Shorten the simulation: 3 hours total, with 3 climbing efforts at race-target power. This session confirms your pacing targets and lets you adjust fuelling if anything felt wrong in week 9.
Both weeks retain one VO2max session of 4x4 minutes. Keep the intensity sharp but reduce the total stress — you are polishing, not building.
Phase 4: Taper (Weeks 11-12)
Volume drops 30% in week 11, 50% in week 12. The work is done. The taper protects it.
Week 11: 3-4 rides. One session of 3x10 minutes at FTP. One ride of 2.5-3 hours at easy pace. Two short Zone 2 spins of 60-75 minutes. One gym session of light core and mobility only.
Week 12 (race week): Two rides of 60-75 minutes with 3-4 short openers — 2-minute efforts at 90-95% FTP to keep the legs responsive. Rest, eat, sleep. The training stress score for race week should be 40-50% of a normal build-phase week.
Climbing Technique for the Castelli Romani
The volcanic terrain of the Alban Hills demands specific climbing skills that differ from what you might practise on more uniform Alpine or British climbs.
Gradient Management on Volcanic Terrain
The Castelli Romani climbs do not hold a steady gradient. A section marked as 7.5% average will include 200-metre stretches at 4% and 100-metre ramps at 12%. This irregularity makes power-based pacing more important than feel-based pacing. On a steady 7% Alpine climb, you can settle into a rhythm and hold it. On Rocca di Papa, you are constantly adjusting — shifting gears, alternating between seated and standing, modulating power to avoid the spikes that drain your reserves.
The practical rule: stay seated on anything below 9% and let your gearing absorb the gradient changes. Stand only on the steepest ramps, and keep standing efforts to 15-20 seconds before sitting back down. Every unnecessary standing effort costs more glycogen than the same work seated, and over four or five climbs that cost compounds.
Pacing Rocca di Papa
The queen climb has three distinct sections. The lower slopes (roughly the first 1.5km) sit at 5-6% — ride these at 80-85% FTP and resist the urge to bank time. The middle section (km 1.5 to km 3.5) is where the gradient bites — sustained 8-9% with pitches above 10%. Settle into 85-90% FTP here and accept the pace. The final kilometre, with its 14% ramp, demands everything you have left — 90-95% of whatever FTP you still possess after the earlier climbs and the 100km of riding that preceded them.
If you are losing form on the 14% ramp, shift to your easiest gear, drop your cadence to 60-65 RPM, stay seated, and grind. Standing on a 14% pitch at the end of a gran fondo is a high-risk move — your heart rate spikes, your coordination suffers, and the rough volcanic surface makes balance harder than it would be on smooth tarmac. Seated grinding is slower but sustainable.
Descending Italian Roads
The descents in the Castelli Romani are short, technical, and on narrow roads. Italian traffic management on event day varies — expect some local vehicles, parked cars, and surface debris. Brake before corners, not through them. Keep your weight back and centred. The volcanic tarmac can be more slippery when damp than the granite-based surfaces common in northern Europe, so if there has been overnight rain, reduce your corner speed by 15-20% from what you would carry on dry roads. These descents are brief enough that time lost descending conservatively is negligible — time lost with a puncture or a crash is not.
Gearing
A compact crankset (50/34) with a 28 or 30-tooth rear cassette covers every gradient on the course. The steepest sustained pitch — the 14% ramp on Rocca di Papa — demands a low gear that you can turn at 60-70 RPM without standing. For a 75kg rider producing 2.8 W/kg, a 34x30 combination gives approximately 67 RPM at 14% — uncomfortable but manageable. A 34x28 at the same power and gradient drops to roughly 60 RPM, which is viable for strong riders but risky for anyone arriving at that ramp with significant fatigue.
Use the gear ratio calculator to check your specific setup against the steepest pitches. If you are under 3.0 W/kg, the 30-tooth is not optional — it is the difference between spinning up the steep sections and grinding to a halt.
The flat opening through Rome's suburbs does not require aggressive gearing. A 50x15 or 50x14 top gear is more than sufficient for the bunch speeds. Do not fit a deep-section aero wheelset for the flat and then suffer on the climbs — this event is decided in the hills.
Fuelling in the Heat
October warmth in the Castelli Romani creates a fuelling challenge that sits between a cool northern European sportive and a full summer Italian event. At 18-24 degrees, you will sweat more than in training at home but less than in the 28-30 degree conditions of a Nove Colli or summer Maratona. The mistake is to assume October warmth is negligible — it is not.
Target: 60-80g of carbohydrate per hour from the first hour. Use the fuelling calculator to plan exact quantities for your bodyweight and expected ride time. The lower end (60g) is appropriate for lighter riders on a 4-5 hour day. The upper end (80g) is right for heavier riders or anyone expecting to ride longer than 5.5 hours.
Hydration. The hydration calculator will frame your specific targets, but plan for 500-750ml per hour in October conditions. At 22 degrees under effort, a 75kg rider loses roughly 0.7-1.0 litres of sweat per hour. Carry two bottles and refill at feed zones. An electrolyte mix with 400-800mg sodium per litre replaces what sweat removes.
The flat-section fuelling trap. Many riders eat and drink comfortably during the flat suburban opening and then forget to fuel once the climbing starts. The transition from flat bunch riding to steep climbing changes your gut tolerance — blood flow redirects from the digestive system to working muscles, and food that went down easily at 65% FTP becomes harder to absorb at 88% FTP. Front-load your fuelling: eat your first bar or gel within 30 minutes of the start and maintain intake through the flat section so that your glycogen stores are topped when the first climb arrives.
Hourly plan:
| Hour | What to Eat | Notes | |------|------------|-------| | 1 (flat section) | Drink mix (30-40g/hr) + 1 bar | Easy absorption, appetite strong, comfortable pace | | 2 (transition to hills) | Drink mix + 1 gel or bar | Eat before the first climb, not during it | | 3 (main climbing) | Drink mix + gels | Liquid and semi-liquid calories — gut tolerance drops on steep grades | | 4-5 (final climbs and finish) | Gels, cola at feed zones, drink mix | Eat whatever stays down, prioritise simple sugars |
Pre-race. Eat 8-10g of carbohydrate per kg of bodyweight the day before. Breakfast three hours before the start — 2-3g/kg carbs, moderate protein, low fibre. Hydrate the evening before with sodium-enhanced drinks. The Roman dinner the night before is part of the experience — make sure pasta is the centrepiece.
Train your gut to absorb 60-80g per hour during at least three long rides in the build phase. Practise eating on climbs, not just on the flat. The riders who bonk on Rocca di Papa are almost never the riders who lacked fitness — they are the riders who stopped eating when the road tilted upward.
Weather and Conditions
Mid-October in the hills south of Rome sits in a narrow band between summer heat and autumn chill. The typical temperature range of 18-24 degrees Celsius at ride elevation makes this one of the most comfortable conditions windows on the Italian gran fondo calendar.
Morning start. Expect 14-16 degrees at the early-morning start in Rome, rising to 20-24 degrees by mid-morning when you are in the Castelli Romani. Arm warmers for the first hour are sensible — they can be rolled down or removed once the climbing begins. A gilet is unnecessary unless rain is forecast.
On the climbs. The volcanic hills south of Rome sit at 500-700 metres altitude. The temperature differential between Rome and the Alban Hills is modest — 2-4 degrees at most. Unlike Alpine events, there is no significant cooling from altitude. The exposed upper slopes of Rocca di Papa and Monte Cavo can feel warm in direct sun, and the lack of shade on certain sections adds a thermal load. The wind chill calculator is less relevant here than at Alpine events — October in the Castelli Romani is about managing warmth, not cold.
Rain. October in Lazio averages 5-7 days of rain per month. If the forecast includes rain, pack a lightweight rain jacket in your jersey pocket. Wet volcanic tarmac is slippery, and the descents between climbs become significantly more technical in damp conditions. If the event day is properly wet, add 10-15 minutes to your time target and descend with extra caution.
Wind. The flat section through Rome's suburbs is sheltered by buildings. The Castelli Romani are more exposed — a southerly wind can create a headwind on certain climbs. Check the forecast the evening before and adjust your pacing expectations accordingly. A 15km/h headwind on a 7% climb at your target power costs roughly 0.5-1.0 km/h of climbing speed — noticeable but not race-ending.
Race Day Pacing
The three-section profile of Granfondo Roma — flat, climbing, return — creates a pacing structure that rewards discipline in the opening kilometres and aggression only on the final descent back toward Rome.
Kilometres 0-40: The Flat Suburban Section. The temptation is to ride fast. The bunch will be fast. Italian gran fondo riders start aggressively, and the wide suburban roads encourage high speeds. Your job in this section is to stay in the bunch, draft efficiently, eat and drink, and arrive at the first climb with a heart rate that has not exceeded Zone 3. If you are pulling at the front of the bunch, you are working for other people's results, not your own. Target 60-70% FTP and use the aerodynamic shelter of the group. Monitor your training stress score — if you accumulate 40-50 TSS in the first 40km, you have ridden too hard.
Kilometres 40-110: The Castelli Romani. This is the event. Ride the first climb at 80-85% FTP — your discipline climb. Ride the middle climbs at 82-90% FTP. Save your sharpest effort for Rocca di Papa. Between climbs, eat and drink on every descent — you have perhaps 5-8 minutes of partial recovery between efforts, and that time must be used for fuelling, not coasting. The riders who finish well are the riders who treated every descent as a feed zone. Use the power-speed calculator to pre-calculate your target wattages for each gradient so you can pace by power rather than feel.
Kilometres 110-145: The Return to Rome. After the final descent from the Castelli Romani, the route flattens for the return to Rome. You are tired. Eat whatever you can stomach, drink, and ride at 60-65% FTP. Find a group if possible — the aerodynamic benefit is worth the social effort. Do not sprint for the finish unless you are actually competing for a placing. The return section is the reward — you have ridden the volcanic hills of the Alban range, and Rome is waiting.
Frequently Asked Questions
These are the questions we hear most from riders inside Not Done Yet who are preparing for Granfondo Roma and comparable autumn events.
Should I ride the gran fondo or medio fondo route? The gran fondo (145km, 2,200m) is the full experience — all four major climbs, the complete Castelli Romani loop, and the sense of having ridden the definitive route. The medio fondo (95km) shortens the climbing loop but still includes Rocca di Papa. If your longest ride in training is under three hours and your W/kg is below 2.3, the medio fondo is the honest choice — finishing strong on the shorter route is a better experience than surviving the longer one.
Can I prepare for the climbs without hills? You can. Indoor trainer sessions with climbing simulations — sustained efforts at 85-95% FTP with gradient changes programmed into the resistance — replicate the muscular and cardiovascular demand of the Castelli Romani climbs. What you cannot replicate indoors is bike handling on steep, narrow roads and the gradient variability of volcanic terrain. If your only climbing preparation is indoors, ride the first real climb conservatively while you calibrate your effort to the road.
How should I handle the flat opening if I am a weaker rider? Find a group that matches your sustainable pace and sit in. The flat section is covered at 35-42km/h by the main bunch, but there are always groups forming further back at 30-34km/h. Drafting at 32km/h in a relaxed group costs roughly 40% less energy than riding 38km/h on the front of the main bunch. The time difference over 40km is less than 10 minutes — and the energy saved is worth 20 minutes on the climbs.
What about the bike transfer and logistics? Rome has two major airports (Fiumicino and Ciampino) with good cycling-friendly transport links. Most riders fly in with a bike bag two days before the event and stay in central Rome or near the start area. Registration and bike check typically happen the day before. Italian gran fondo logistics are generally well-organised — feed zones are stocked, the route is marked, and medical support is available on the climbs. Bring your own nutrition for the bike and treat the feed zone food as supplementary.
Is there a cutoff time? The organisers enforce rolling cutoffs on the course, typically requiring riders to reach certain checkpoints within a specified time. Riders averaging above 20km/h across the full route (roughly a 7-hour finish) will not encounter cutoff issues. If you are expecting to ride significantly slower than that, check the current year's regulations before registering. The medio fondo has more generous cutoffs and is the appropriate choice for riders whose pace falls below the gran fondo minimums.