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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 02-15-07, 11:54 AM   #1
Natron
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Simple Sugino 75 question

Ok this is stupid. I keep seeing reference to the hex bolts common to Sugino 75 BB/crank setups being 15mm. Do they seriously use a huge 15mm hex wrench for those bolts or am I reading this wrong? Anyone who has them on their bikes want to chime in and let me know? I only ask because I haven't even seen a 15mm hex wrench around here and photos of the BB/crank setups I've seen don't look like the head is that big.

The biggest I've seen are 10mm hex bolts holding the crank arms on my Shimano XT setup..
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Old 02-15-07, 11:56 AM   #2
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crank bolt is standard 8mm. chainring bolts are standard 5mm.
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Old 02-15-07, 11:58 AM   #3
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Quote:
Originally Posted by baxtefer
crank bolt is standard 8mm. chainring bolts are standard 5mm.
This is why I love this place. Thank you.
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Old 02-15-07, 12:08 PM   #4
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the 15mm size is not hex, they are the size of crank bolts with heads for socket wrenches.
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Old 02-15-07, 12:42 PM   #5
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usually when it says hex and then 15mm it means it's a regular six point 15mm bolt head...six point being the hex shape...i have some crank bolts on my bike that are 14mm hex.
not 14mm allen, that would be effing huge.
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Old 02-15-07, 12:44 PM   #6
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external vs. internal hex, that's easier.
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