Call us on 01278 441500

Eccentric Bottom Bracket Insert - Fits Raven Mk2 Sport Tour / Catalyst / Enduro / Sterling / Twin Tandem

Customer Reviews (1)
4 / 5| Write your review
Product Reviews (1)
Questions & Answers (2) Q & A
51.2mm diameter.
73mm long.

Accepts 73mm bottom brackets only, 2 holes go on LEFT hand side of bike.
Download File  
Product Reviews (1)
Overall Product Rating 4 / 5
Good Fit
08 Aug 2011
4 / 5
I recommend this product
The old insert had been dostorted by not using the proper tool, so was difficult to remove. New one fitted perfectly when fully greased, and I intend to look after this one.
Questions & Answers (2)
I Have A Couple Of The Halfords Original Folding Bikes.
11 Mar 2015
They have a BB i.d. of 51.3mm (unthreaded) and a shell width of 69mm. Will the Thorn insert fit satisfactorily? They appear to take JIS axles/cartridge bearings. How much eccentricity is available please?

Unfortunately this eccentric shell is too short to be used within your frame and none of our other eccentric shells match your dimensions either I'm afraid.

How Long Does The Bottom Bracket Have To Be?
02 Dec 2013
I have a thorn catalyst, and the bb now has play. I can see it has to be 73mm, but what length do I need please?

I cannot know the length for sure because it is the overall length is relevant to the cranks not the actual frame. The cranks that would have come as stock on your bike have long been discontinued but as far as I'm aware they were designed around a 110mm bb but I can't say for definite.