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Thorn Audax Mk3 R Frame - Red

£299.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
- For frame sizes 525, 570 and 600 use the 46mm rake fork
- For frame sizes 495 and 555S use the 55mm rake fork

Frame accepts 28.6mm clamp-on front derailleur, deep-drop 47/57mm Allen key fitting brakes, rear OLN is 132.5mm to accept either 130 or 135mm hubs. Frame will take 32c Schwalbe Supreme tyre with mudguards. Thorn 858 double butted seamless cro-mo tube, one set of bosses on rear triangle for racks or mudguards, down-tube bosses accept either stops or Shimano down-tube levers but not Campagnolo.

- 1 1/8" (28.6mm) Orbit XL2 threadless headset
- 27.2mm alloy micro adjust seatpost
- Bottom bracket cable guide

Frame weight is 2.3kg (average). Click on the XL image to see the size matrix, view at maximum magnification.

NOTE: Does not include: fixing screws, down tube cable stops or bottom bracket.
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Questions & Answers (4)
Size 550
31 Jul 2019
Hi There,

Is this likely to be available in size 550 (colour red) any time soon? Or will this be discontinued now the Mk 4 exists?

Hi, yes the MK3 is discontinued. Thanks
is the bottom bracket threted in the british way?
01 Dec 2017

Yes all Thorn frames are English threaded.

09 Nov 2017
Is the headset and fork crown race fitted as shown in the pictures ?

The headset and crown race do come pre-fitted as shown.

Thorn Audax
05 Dec 2016
Does The Thorn Audax Frame Set Require Any Prep Before Assembly. I've Read That The Bottom Bracket Shell Needs Chasing And Facing On Some Builds?
This will be my first self build.

When purchasing new frames we do always recommend also purchasing our Frame Workshop Prep which is SJSC part number 23407.