170mm Hollow Rear Axle Spindle

[NealM]

Hi All

I have an old BSO, that I want to convert to a QR skewer on the rear axle so that I can use it on my newly acquired turbo trainer. .

However the rear axle seems to be very wide.. I've measured the old solid rear axle spindle and it's 170mm wide. . I therefore presume I need the replacement HOLLOW rear axle spindle, (to allow fitment of the QR skewer); to also be 170mm...

I can't find anywhere that sells such an item . . . Can anyone point me in the right direction ??


Many thanks

 

[hoski]

Hi All

I have an old BSO, that I want to convert to a QR skewer on the rear axle so that I can use it on my newly acquired turbo trainer. .

However the rear axle seems to be very wide.. I've measured the old solid rear axle spindle and it's 170mm wide. . I therefore presume I need the replacement HOLLOW rear axle spindle, (to allow fitment of the QR skewer); to also be 170mm...

I can't find anywhere that sells such an item . . . Can anyone point me in the right direction ??


Many thanks

You won't want the axle to protrude outside of the dropouts with a hollow/QR axle... so you don't want it to be the same length as the old solid one.

What is the distance between the rear dropouts? 130mm or 135mm?

 

[RecordAceFromNew]

As hoski said, you need to measure the distance between the dropouts. You then add 10mm or 11mm to arrive at the right length for a hollow qr axle.

I would advice you ensure the existing axle is threaded and the hub has cup and cone bearings. Measure the thread size carefully so that you can buy the replacement accordingly - while there are exceptions there are 3 key thread standards for rear axles: M10 x 26tpi (usually Italian) or 3/8"(9.5mm) x 26tpi (usually Chinese) or M10 x 1mm (most Japanese). Hollow threaded axles are available for all these in various common lengths. If you don't get a replacement with the same thread standard you might not be able to reuse the existing cones, seals, spacers and dustcaps, and you could end up with a hell of a job finding new ones that fit well with the existing hub shell.

 

[Sharky]

http://www.sjscycles.co.uk/wheel-axles-qr-and-nutted-dept654_pg1/

These have some axles, but costs seem high compared to a whole wheel.

Cheers keith

 

[NealM]

Many thanks for the replies folks. .

I'll measure the distance between the dropouts and see what that is . . Hopefully it will work out to be somewhere close to one of the "Standard" lengths of hollow spindles that are available ..

@Sharky Thanks for the link, although as you say they seem very expensive..

 

[Leaway2]

http://www.evanscycles.com/products...release-axle-ec023001?country=GB&currency=GBP

I used one of these, although it was a replacement not converting to hollow.