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700c Thorn Audax Mk4 Steel Fork - Gunmetal Imron

£119.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Mk 4 Audax fork comes in two offsets 46mm and 55 mm.
- Axle to crown - 380mm
The 46mm offset suits all Thorn Audax frames from Mk 2 onwards - except the very smallest size, which used to be Size 495 and is now Size 50cm and the medium sized frame with a short top tube Size 555S (55.5cm). Both these sizes require a 55mm offset.

Thorn 858 seamless Cro-Mo tubing with mudguard bosses for direct and secure fitting of mudguards. These forks are for deep drop 47/57mm caliper brakes.
Clearance for 30mm tyres + guards OR 32mm without guards

55mm for 495s / 555s sizes and the 46mm for all other sizes .
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Questions & Answers (3)
Would this fork work with my Van Nicholas Yukon - straight steerer external headset?
02 Nov 2020
Hello, as we do not stock Van Nicholas bikes we cannot say, please contact the bikes manufacturer for additional information as to headset and fork spesficiations.


JK 02.11.20
What is the tubes set and fork length?
22 Aug 2018
What tube set are the blades and steerer tube made from?
How does the weight compare to the 853 fork?
What is the axle to crown dimension?

For any information or advice on any of Thorns bikes, frames or forks please contact out dedicated Thorn bikes sales team either on 01278 441505 or at [email protected] and they'll be able to provide you with all of the information you need.

700C Thorn Audax Mk4 Steel Fork
05 Jul 2017
concerning the steerer, I need a 1 inch treadless one.
Can I order such one?

Unfortunately not, these forks are available with a 1 1/8" steerer tube only.