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 Post subject: Newbie BMX Questions
PostPosted: Tue Jul 03, 2012 2:37 pm 
Retro Guru
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Joined: Mon Jul 27, 2009 8:21 pm
Posts: 434
Hi,

I'm looking for some help regarding a BMX I picked up for my Daughter.

It's a Redline RL240 from late 90's (I think)

I've a question about cranks and bottom brackets, I've yet to strip it down bit it looks to have threaded cups and a crank that passes through the bottom bracket shell. The thing is, it's quite a long crank. Are short cranks available for short people? I've spotted a square taper crank from Sinz that looks ideal but can't see that a square taper bottom bracket will fit the shell. I've not measured the BB shell but it looks oversized compared to a normal bb shell.

Any experts out there to point me in the right direction / correct my thinking?


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 Post subject:
PostPosted: Tue Jul 03, 2012 5:50 pm 
Old School Hero
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Joined: Wed Jun 02, 2010 7:49 pm
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the 90's rl240 has an american bottom bracket (was the std bmx size for 20+ years) which consists of two cups which push into the frame


http://www.ebay.co.uk/itm/RALEIGH-BURNE ... 6rk%3D3%26

you can get shorter crank arms

http://www.ebay.co.uk/itm/JUNIOR-STEEL- ... 415aac3358


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 Post subject:
PostPosted: Tue Jul 03, 2012 7:40 pm 
Retro Guru
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thanks Kev-s much appreciated.

Another Newbie question if I can..

How does the chain ring come off the crank?


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 Post subject:
PostPosted: Tue Jul 03, 2012 8:14 pm 
Old School Hero
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the chainring is attached to the crank via a locknut which also acts as a cone for the bearing, generally u need a big pair of grips to remove the lock nut


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 Post subject:
PostPosted: Tue Jul 03, 2012 8:46 pm 
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Thanks again, I reckon I'm ready to go.

Daughter wants it stripped down and painted pink, she doesn't like these colours.

http://bmxmuseum.com/bikes/redline/39449

Or shouldn't I say that around these parts...

Regarding the BB cups I assume I'll be able to drift them out?


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