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RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  OS bike modern crank help please
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Author Topic: OS bike modern crank help please  (Read 1164 times)

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billycrabtreeomer

  • Guest
OS bike modern crank help please
« on: October 13, 2009, 07:39 PM »
Is it possible to fit a modern crank to my os 84 quad & tange dontknow F & F. I need to up grade for some modern light wieght ones.

This is so i can make my old school bike as light and strong as poss for racing on.

Has anyone done this and can you please pass me on your tips.

Both of these bikes have been raced of late, i do swop parts over 12other.



HEYWOOD BMX

  • Guest
Re: OS bike modern crank help please
« Reply #1 on: October 13, 2009, 07:44 PM »
 :) OS bikes have a USA bottom bracket shell.New school cranks have either a 19MM or 22MM spindle,so all you need to do is buy a matching size USA bottom bracket bearing set-all decent BMX shops will have them.

magna13

  • Guest
Re: OS bike modern crank help please
« Reply #2 on: October 13, 2009, 07:47 PM »
Redline Twin Pinch Flights. :)

Old School design with New School quality's :daumenhoch:

billycrabtreeomer

  • Guest
Re: OS bike modern crank help please
« Reply #3 on: October 13, 2009, 09:45 PM »
:) OS bikes have a USA bottom bracket shell.New school cranks have either a 19MM or 22MM spindle,so all you need to do is buy a matching size USA bottom bracket bearing set-all decent BMX shops will have them.

niceone didnt know that shall get hunting, many thanks HEYWOODBMX

billycrabtreeomer

  • Guest
Re: OS bike modern crank help please
« Reply #4 on: October 13, 2009, 09:55 PM »


Old School design with New School quality's Yes! thats the way for me. was thinking of alloy cranks.

HEYWOOD BMX

  • Guest
Re: OS bike modern crank help please
« Reply #5 on: October 13, 2009, 10:29 PM »
  :) If you`re after alloy,Primo Hollowbites are pretty good (22 mm) or Cyclesport have their own brand Prolite Stealth cranks for a bit less.

http://www.cyclesportuk.co.uk/product_info.php?cPath=31&products_id=1709

Offline billstup

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Re: OS bike modern crank help please
« Reply #6 on: October 13, 2009, 11:33 PM »
Billy ask Stodgy in the Radshop about twin pinch Redline Flight cranks, he had a good deal on them a little while ago, and you need cromo cranks not alloy  :daumenhoch:
I see you stand like greyhounds in the slips,
 Straining upon the start. The game's afoot:
 Follow your spirit, and upon this charge
 Cry 'God for Harry, England, and Saint George!'

billycrabtreeomer

  • Guest
Re: OS bike modern crank help please
« Reply #7 on: October 14, 2009, 12:00 AM »

     If you`re after alloy,Primo Hollowbites are pretty good (22 mm) or Cyclesport have their own brand Prolite Stealth cranks for a bit less.
     

     Nice link , cheers :)

Offline Faze7-Ade

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Re: OS bike modern crank help please
« Reply #8 on: October 14, 2009, 05:53 AM »
Redline twin pinch flights fit a quad with a bit of fettling on the chain alignment.


Check out this link - this is my quad with those cranks fitted.

http://www.radbmx.co.uk/forum/index.php'topic=75301.0


billycrabtreeomer

  • Guest
Re: OS bike modern crank help please
« Reply #9 on: October 14, 2009, 10:01 AM »
Billy ask Stodgy in the Radshop about twin pinch Redline Flight cranks, he had a good deal on them a little while ago, and you need cromo cranks not alloy  :daumenhoch:

cheers biily ,i shall ave a look mate

SaMAlex

  • Guest
Re: OS bike modern crank help please
« Reply #10 on: October 14, 2009, 10:10 AM »

This is so i can make my old school bike as light and strong as poss for racing on.


Most 3 piece cranks will be heavier than a one piece crank. They will be MUCH stonger, but heavier  :daumenhoch:

billycrabtreeomer

  • Guest
Re: OS bike modern crank help please
« Reply #11 on: October 14, 2009, 01:59 PM »


   Most 3 piece cranks will be heavier than a one piece crank. They will be MUCH stonger, but heavier  :daumenhoch:

  Yes thats true just my hollow one piese are getting a hammering & didnt want a accident breaking them.

  cheers for advice thou
 

RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  OS bike modern crank help please
 

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