OS bike modern crank help please

[billycrabtreeomer]

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]

  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]

Redline Twin Pinch Flights.

Old School design with New School quality's

[billycrabtreeomer]

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]

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

[HEYWOOD BMX]

  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

[billstup]

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 

[billycrabtreeomer]

     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

[Faze7-Ade]

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]

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 

cheers biily ,i shall ave a look mate

[SaMAlex]

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 

[billycrabtreeomer]

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

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

  cheers for advice thou