BB Spindle Length

Sorting out your thrunge brackets, fettling your inter-rositers and even stuff about bike parts.
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beardwithabike
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Joined: Thu Jun 26, 2008 17:07 pm

BB Spindle Length

Postby beardwithabike » Thu Dec 27, 2012 11:01 am

Hey,

I bought some Truvativ cranks that came off a recent jump bike. No real sign of any model name so unable to google around for this one easily.

I'm putting them on a DMR Sidekick Mark 2 which has a 68mm BB shell width. I need a square taper bottom bracket for a single speed set up but my question is, what spindle length do I need??

I have been hovering around the 108 or 113 and appreciate the difference would be 2.5mm in the chain line. Is there a way I can work it out? Does 2.5mm on single speed really matter that much?

I haven't bought my single speed conversion kit yet either so could always get one that allows me to move spacers around to line things up.

Thanks in advance for any help guys and girls!

Chris

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supersonic
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Joined: Fri Nov 25, 2005 11:50 am

Re: BB Spindle Length

Postby supersonic » Thu Dec 27, 2012 13:32 pm

What are the cranks?

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beardwithabike
Posts: 286
Joined: Thu Jun 26, 2008 17:07 pm

Re: BB Spindle Length

Postby beardwithabike » Thu Dec 27, 2012 16:01 pm

The guy I bought them off said they came off a Haro Thread, but the ones I have arent listed in the 'Thread' spec.

The only marks on them are:

IFOBAL
170
G
(Non drive side)

IFOBAL
170
G2
(Drive side)

Pictures:

Image

Image

Image

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supersonic
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Re: BB Spindle Length

Postby supersonic » Thu Dec 27, 2012 16:26 pm

Almost undoubtedly a 113mm for a 47.5mm chainline.

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beardwithabike
Posts: 286
Joined: Thu Jun 26, 2008 17:07 pm

Re: BB Spindle Length

Postby beardwithabike » Thu Dec 27, 2012 17:35 pm

Thank you! I will get one ordered.


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