Mountain Biking - What size is my Botton Bracket?

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View Full Version : What size is my Botton Bracket?


jayblizz
08-30-12, 02:06 PM
hi,i currently have a magna anza mountain bike and can not find the bottom bracket size on the PDF manual i downloaded from their website,i tried calling but no one answers :(. i would also like to know if i can put a modern bottom bracket on this bike and if i can put this crankset on it: FSA Energy Full Speed Ahead Standard Crankset:
http://phota.me/ltif.jpg
my bike:
http://i.imgur.com/1sSU3.jpg
bottom bracket picture of my bike:
http://i.imgur.com/S8VSe.jpg
my bike PDF: http://www.dynacraftbike.com/pdf/DYNACRAFT_MANUAL_2011.pdf
thanks for your help! :)


IthaDan
08-30-12, 07:54 PM
you know what? it'll probably thread right in. That magna is almost certainly an english, 68mm bb. Just know that you'll more than double the value of the bike with just the crankset and the BB.

jayblizz
08-31-12, 03:49 AM
you know what? it'll probably thread right in. That magna is almost certainly an english, 68mm bb. Just know that you'll more than double the value of the bike with just the crankset and the BB.
Thank you for your input.well,i actually decided to go with another crankset after a long search on google,i found this: it is a Lasco: Square Taper Road Triple Crank Set,which fits perfectly on my bike,Description: 52 - 42 - 30 tooth chainrings

Chain Rings are removable

Crank bolts are included

Accepts standard 9/16 pedals,175mm Length crank arms,130mm BCD. Price: $ 29.95,and later on i will put a 56T chainring on it
http://i.filmot.com/EAlFA.jpg


Daspydyr
08-31-12, 09:28 AM
Nice upgrade! A 56 tooth is a lotta speed for a Magna. I don't even have that on my bikes. Good luck!

jayblizz
08-31-12, 03:11 PM
Nice upgrade! A 56 tooth is a lotta speed for a Magna. I don't even have that on my bikes. Good luck!
oh yea,Speed,thanks :thumb: