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Technical & Reference Section => Tech and Restoration => Topic started by: Stevo on March 28, 2006, 09:28 PM

Title: Will a Profile BB fit modern Redline flights?
Post by: Stevo on March 28, 2006, 09:28 PM

Alright guys, please let me know if the Profile BB pictured will fit the modern (2000's) Redline Flight cranks.

I think they are both 19mm. I prefer the Profile BB as they are chrome and will look better on my chrome TA resto.

Assistance appreciated as always.

(http://www.radbmx.co.uk/archive/albums/e112/smitchell7/profile.jpg)

(http://www.radbmx.co.uk/archive/albums/e112/smitchell7/Redline.jpg)

Title: Re: Will a Profile BB fit modern Redline flights?
Post by: billstup on March 28, 2006, 09:35 PM

Nope  :crazy2:

Title: Re: Will a Profile BB fit modern Redline flights?
Post by: steve on March 29, 2006, 10:21 AM

swap the bearings

-they dont fit as - a reline spindle is smaller than a profile chainring hole
-you have to file the spacer to get a profile chainring on.
-thats what i did.

Title: Re: Will a Profile BB fit modern Redline flights?
Post by: Stevo on March 30, 2006, 08:55 PM

Thanks Steve and Billy.

The seller of the Profile BB says they fit a 19mm spindle.

I have measured the Redline BB and its 19mm too. Also on amazon its says the chainwheel is 19mm, see the link below:
http://www.amazon.com/gp/product/B000C15NG8/qid=1143747254/sr=1-1/ref=sr_1_1/104-7417449-2151966?%5Fencoding=UTF8&n=3375301&s=sporting-goods&v=glance (http://www.amazon.com/gp/product/B000C15NG8/qid=1143747254/sr=1-1/ref=sr_1_1/104-7417449-2151966?%5Fencoding=UTF8&n=3375301&s=sporting-goods&v=glance)

I think they should fit. But I could be wrong, as I am not an expert.

Cheers

Title: Re: Will a Profile BB fit modern Redline flights?
Post by: billstup on March 30, 2006, 09:40 PM

I recently had to swop some flights over to profiles on a bike and I had to change everything over, the spindle was not compatible with different bearings  :(

Title: Re: Will a Profile BB fit modern Redline flights?
Post by: steve on March 31, 2006, 05:00 PM

then, early profile stuff is 19mm
-the modern imperial rings are larger bored
?

-i think, not 100 percent sure