What is size of Wipser 905SE (2008) bottom bracket?

oregon

Pedelecer
Aug 1, 2008
96
2
Palmers Green, London
Hi all

My BB needs replacing (I have had a thread on here last 2 weeks about brakes). But, I don't know what size it is! I need this so that TETS can order the correct part.

Please can someone with the same model bike as me, let me know?

I have a wisper 905se sport (August 2008)

The sizes that Wipser have are:

Bottom Brackets (axle) 157mm
Bottom Brackets (axle) 162mm
Bottom Brackets (axle) 174mm

I don't have a sealed BB, so it must be one of the above. I measured mine as 130mm but I am told that is wrong!

Help!
 

Mussels

Esteemed Pedelecer
Jun 17, 2008
3,207
8
Crowborough
I suspect it's just the bearings that need replacing, I did those several times on my 905 and never needed to replace the other bits.
I can't help with the BB size but I suspect Wisper support can if you give them (or TETS) the frame number.
 

Blew it

Esteemed Pedelecer
Jun 8, 2008
1,472
97
Swindon, Wiltshire
On my July 2008 Wisper 905 se, the overall length of the crank-axle is 177 mm.

There's always a slight variation in the threaded portion of the axle. I would suggest you order the longest at 174 mm.

The measurement you have given, 130 mm, is the distance between the inside faces of the crank-arms when fitted to the axle.

Edit: The crank-axle is handed, measured from the journal face to the end of the thread, there is a 5 mm difference. make sure you have the longest side on the chainwheel side, otherwise you won't have room for the magnet disc.

Have fun
Bob
 
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