70mm shell Sekine with english thread
02-23-12, 02:14 PM
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70mm shell Sekine with english thread
Hey guys,
I have a Japanese made (pre 1973) Sekine and i'd like to upgrade the crankset. I took off the crank and bottom bracket only to find out the shell is 70mm (def not 68) but it has the english 68mm thread type.
Would I be able to use a modern 68mm BB? Will the 2mm make a huge difference?
heres a crankset im looking at: https://www.nashbar.com/bikes/Product...200545__202430
any help appreciated, im new to all this.
edit: it has 1.37"x24TPI threading.
I have a Japanese made (pre 1973) Sekine and i'd like to upgrade the crankset. I took off the crank and bottom bracket only to find out the shell is 70mm (def not 68) but it has the english 68mm thread type.
Would I be able to use a modern 68mm BB? Will the 2mm make a huge difference?
heres a crankset im looking at: https://www.nashbar.com/bikes/Product...200545__202430
any help appreciated, im new to all this.
edit: it has 1.37"x24TPI threading.
Last edited by king_edward; 02-23-12 at 02:16 PM. Reason: new info
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