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CrashStats

Serious A4155 crash in South Oxfordshire on 8 December 2025 at 10:30 involving a Mercedes Sprinter van

A Mercedes Sprinter van and a bicycle were involved in a crash on the A4155 in South Oxfordshire at 10:30 on Monday 8 December 2025. The 22-year-old male cyclist was seriously injured.

It happened in daylight in fine weather on a wet single carriageway with a 20 mph limit, at a T or staggered junction.

Severity
Serious
Date
8 Dec 2025
Monday, 10:30
Vehicles
2
Mercedes Sprinter and bicycle
Casualties
1
1 seriously injured

Location of the crash

Police recorded the crash at latitude 51.5328, longitude -0.90206, in the RG9 postcode district and within the built-up area of Henley-on-Thames. It is one of the crashes that make up the Henley-on-Thames, South Oxfordshire, RG9 6WJ area accident hotspot.

Map of where the crash happened in South Oxfordshire

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  • 1 crash
  • Serious

Collision details

Basic information

Reference
2025430626243
Council area
South Oxfordshire
Police force
Thames Valley
Police attended the scene
No, reported using a self completion form
Highway authority
Oxfordshire

Road and location details

First road class
A
First road number
4155
Road type
Single carriageway
Speed limit
20 mph
Urban or rural
Urban
Trunk road
Non-trunk road

Junction information

Junction type
T or staggered junction
Junction control
Give way or uncontrolled
Second road class
Unclassified

Pedestrian crossing information

Crossing facilities
No physical crossing facility within 50 m

Environmental conditions

Light conditions
Daylight
Weather
Fine, no high winds
Road surface
Wet or damp

Enhanced collision data

Serious injury band
Less serious
How severity was recorded
From injuries recorded by police (CRASH system)
Estimated chance it was serious
100%
Estimated chance it was slight
0%

The 6 nearest recorded crashes

The nearest, 5 metres away, was a slight injury crash on 7 January 2014.

Vehicles involved (2)

  • Vehicle 1: Mercedes Sprinter

    Van or goods vehicle up to 3.5 tonnes

    Manoeuvre
    Turning right
    Travelling from
    North
    Travelling to
    South West
    Position at junction
    Leaving main road
    First point of impact
    Nearside
    Left-hand drive
    No
    Journey purpose
    Journey as part of work
    Driver sex
    Male
    Engine capacity
    2,143 cc
    Fuel or propulsion
    Diesel

  • Vehicle 2: Bicycle

    Pedal cycle

    Manoeuvre
    Going ahead
    Travelling from
    South
    Travelling to
    North
    Lane or location
    Footway (pavement)
    Position at junction
    Approaching junction or waiting or parked at junction approach
    First point of impact
    Front
    Left-hand drive
    No
    Journey purpose
    Personal business or leisure
    Driver sex
    Male
    Driver age
    22 years
    Driver home area deprivation
    20 to 30% least deprived
    Distance from driver's home
    Within 5 km

Casualties (1)

  • Casualty 1: Cyclist

    Serious

    Male, aged 22, on vehicle 2 (Bicycle)

    Serious injury band
    Less serious
    Home area deprivation
    20 to 30% least deprived
    Distance from home
    Within 5 km

Data source

This record comes from the Department for Transport’s road safety data (STATS19), in which police forces in Great Britain record every road crash reported to them where someone was injured. It is reference 2025430626243 in the data published on GOV.UK under the Open Government Licence v3.0, and one of the crashes counted in the South Oxfordshire road accident statistics for 2025.