Hillingdon Cycle Circuit hosts a series of time trial events organized by Westerley Cycling Club. These races take place on a car-free outdoor circuit, offering riders the chance to push their limits over a distance of 10.35 miles (11 laps). Participants can choose between two categories: Time Trial Bike Event and Road Bike Event. The Time Trial Bike Event allows for advanced equipment such as full aero helmets, deep section wheels including disc wheels, and time trial/triathlon bikes. Entry fees are set at £10.00 for adults, with discounts available for Westerley CC members (£5.00) and juniors (£5.00). For the Road Bike Event, regulations are stricter to ensure fairness and safety. Riders must use standard road or mountain bikes without aero clip-on bars, time trial/triathlon bars, pointy aero helmets, or wheels deeper than 60mm. The entry fee is also £10.00 for adults, with the same discounts applicable. Both events adhere to strict no-drafting rules and are conducted in accordance with current Cycling Time Trials guidance to ensure a safe and secure environment. Riders must keep track of their own laps as they complete 11 circuits around the circuit. Whether you're an elite time trialist or prefer traditional road biking, Hillingdon Cycle Circuit offers an exciting challenge for all levels of cyclists looking to test their speed on this scenic and challenging course.
Races Offered
Junior Road Bike
Jul 29, 2026
straighten
Distance —
16.7K
terrain
Type —
Cycling
timer
19:00
sell
£0.00
Junior Time Trial
Jul 29, 2026
straighten
Distance —
16.7K
terrain
Type —
Cycling
timer
19:00
sell
£0.00
Road Bike Only
Jul 29, 2026
straighten
Distance —
16.7K
terrain
Type —
Cycling
timer
19:00
sell
£5.00
Time Trial
Jul 29, 2026
straighten
Distance —
16.7K
terrain
Type —
Cycling
timer
19:00
sell
£5.00
Weather History
These values represent the 3-year monthly averages for July in Hillingdon.
thermostatTemperature
13.7° / 22.1°
wb_sunnyFeels like
12.0° / 19.8°
light_mode
Avg sunshine hours
10h 40m
water_drop
Avg rainfall
3.1 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
12.6 km/h (Gentle breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (5.6)
humidity_mid
Humidity
70.5%
wb_twilight
Sunrise
05:04
nightlight
Sunset
21:10
About Hillingdon
Learn more about the host city, Hillingdon.
Hillingdon is an area of Uxbridge within the London Borough of Hillingdon, centred 14.2 miles (22.8 km) west of Charing Cross. It was an ancient parish in Middlesex that included the market town of Uxbridge. During the 1920s the civil parish bore a rapid, planned increase in population and housing, and was absorbed by Uxbridge Urban District in 1929. It has formed part of Greater London since 1965.
