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Old 01-13-10, 04:07 PM   #1
keebo
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Mavic 1.375 x 24 square Bottom Bracket conversion to what, thats just it to what

Hi to everyone I'm new here first bike forum & first thread
Why this forum I just google some of my thread title and got good feed back here
I am replacing my Mavic Bottom Bracket square drive as the bearings had gone and the left crank keeps working loose
I've been looking on ebay at second hand parts but I need some ad vive on what will fit our what would be best my bike is from the eighties with 105 equipment

Thanks in advance
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Old 01-13-10, 04:21 PM   #2
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You just need to know the type of threading/shell width and spindle length for a replacement. Shimano square taper carts are widely available for ~ $25.
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Old 01-13-10, 04:25 PM   #3
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105 equipment probably came with either ~ 116 or 119mm spindle length. JIS taper. You should measure your length to be sure. Yours would be an English thread.
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Old 01-13-10, 05:10 PM   #4
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OK thanks so far i've sort of miss lead you all
I have 105 brakes, rear derailer, front derailer, so i would like to fit 105 cranks & rings but without the square drive, our later type B/B with the toughest drive format that the 1.375 dia frame bore can take my old B/B is a 68mm x 116mm

Thanks
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Old 01-13-10, 11:36 PM   #5
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Originally Posted by keebo View Post
OK thanks so far i've sort of miss lead you all
I have 105 brakes, rear derailer, front derailer, so i would like to fit 105 cranks & rings but without the square drive, our later type B/B with the toughest drive format that the 1.375 dia frame bore can take my old B/B is a 68mm x 116mm

Thanks
If they're not square taper the other two 105 cranks are either octalink or external bottom bracket style. They will both fit on your english BB threaded bike.
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Old 01-22-10, 03:25 PM   #6
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If they're not square taper the other two 105 cranks are either octalink or external bottom bracket style. They will both fit on your english BB threaded bike.
Thanks for this
I bought new eventually from Ribble Cycles sora compact, sm-fc 4500 b/b, KMC chain & the spanner 65.58.
Had trouble removing the Mavic b/b had to bore it out then the bearing cups wouldn't start had to make a left & right hand tap
then I couldn't get the left hand tap to start square so had to re-mount and tap in my milling machine, then it all went back together like a dream, sorted the chain length mounted the bike on the turbo trainer for a test and it was good I like the b/b designe

Thanks
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