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Road cycling routes

East Of England

Mimms Lane – Cumcum Hill Climb loop from Radlett

Road cycling routes

East Of England

Mimms Lane – Cumcum Hill Climb loop from Radlett

Moderate

13

riders

Mimms Lane – Cumcum Hill Climb loop from Radlett

01:55

43.4km

340m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: June 13, 2026

Tips

Includes segments that go up or down a series of steps

You may need to carry your bike.

After 6 m for 40 m

After 43.4 km for 40 m

Waypoints

A

Start point

Train Station

Get Directions

1

425 m

Beast Mode Hill Climb

Highlight (Segment) • Cycleway

Quite a busy road so beware of traffic messing up your speed up the hill

Tip by

2

3.78 km

Mimms Lane

Highlight (Segment) • Cycleway

Great downhill going west to east from Shenley to the M25, but also a fun uphill going the other way. Good road surface and great views, just watch out for …

Tip by

3

11.4 km

Bradmore Lane

Highlight (Segment) • Cycleway

Nice little lane linking Brookmans Park and Warrengate/Swanland rd, pretty nice and rural like the more or less parallel Hawkshead road to the south

Tip by

4

23.5 km

St Andrew's Church of England

Highlight • Other

small grass triangle to relax on

Tip by

5

25.6 km

Cumcum Hill Climb

Highlight (Segment) • Climb

Awful name for a road but the hill is quite steep

Tip by

26.8 km

Duncan's Wood

Forest

7

28.8 km

Hatfield House North Lodge Gatehouses

Highlight • Structure

You cannot use this gate to enter the Hatfield House area. I think someone lives in the building of the gate

Tip by

8

32.7 km

Downhill Stretch with Views of North Mymms Park Estate

Highlight (Segment) • Cycleway

Great views of North Mymms Park Estate and country field either side whilst fast downhill

Tip by

B

43.4 km

End point

Train Station

Way Types & Surfaces

Way Types

35.9 km

4.44 km

2.44 km

509 m

< 100 m

< 100 m

< 100 m

Surfaces

41.3 km

1.81 km

267 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (130 m)

Lowest point (70 m)

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Comments

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