DateExpected
Mid September 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Downside Village Hall, Downside Common Road, Cobham, Surrey, KT11 3NP
Downside, Surrey
Countdown
September
The full Grumble: 65 km of Surrey gravel with a modest 707 m of climbing, so it's a steady day out rather than a grind. Ride it with mates and stop for the feed.
Key facts
01Not a race: self-supported, with no timing or podium
02Rolling start, so leave any time between 08:00 and 10:00
03Be finished by 15:00; a feed stop and club support riders are on the route
Create a free training plan for the The Surrey Grumble 65 km
7-day free trial, no card required
The course
The route
Downside
Distance65km
Total climb707m
StartElevation
0 kmDrag map to rotate63.0 km
Weather
Mid-September, Downside
20°CTypical high
10°CTypical low
3°CColdest in 20 years
33%Days with rain
Highs around 20°C and lows around 10°C, but it has dropped to 3°C. Rain on 33% of days.
NASA POWER data, 2006-2025, the week either side of race day
Organiser
OrganiserTwickenham Cycling Club (Twickenham CC)
Websitetwickenhamcc.co.uk
Instagram@tcctwickenhamcyclingclub
Running since2020
Training
Training for the The Surrey Grumble 65 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a The Surrey Grumble 65 km plan targets
Typical sessions
65 km with 707 m of climbing
Endurance and fatigue resistance over the full distance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long endurance rides building toward the full distance
Threshold and sweet-spot work for sustained power
Group rides for drafting and bunch-riding skills
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your The Surrey Grumble 65 km plan.
7-day free trial, no card required.
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