Inner chainring bolts
06-11-13 | 04:36 AM
#1
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Inner chainring bolts
Hi,
Does anyone know if it is possible to use outer chainring bolts as a substitute for inner chainring bolts? I am having a problem finding them here in Sweden and can only find chainring bolts on Chain Reaction but their inner ones are out of stock.
Horace
Does anyone know if it is possible to use outer chainring bolts as a substitute for inner chainring bolts? I am having a problem finding them here in Sweden and can only find chainring bolts on Chain Reaction but their inner ones are out of stock.
Horace
06-11-13 | 07:10 AM
#2
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From: Pittsburgh, PA
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Maybe. All of the outer chainring bolts I've seen are M8. Inner chainring bolts I have are both M8 and M6 with the M6's having an unthread shoulder to position the chainring. So, if your crank has an M8 threaded granny ring bolt circle, yes, outer bolts will work.
06-11-13 | 09:24 AM
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From: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
One caveat, and it depends on your crank. Some cranks have shoulders that the ring fits against directly. For these, you'd use a double bolt.
But some cranks use a spacer between the ring and crank arm. That needs more length to reach through and get enough thread engagement on the arm.
But some cranks use a spacer between the ring and crank arm. That needs more length to reach through and get enough thread engagement on the arm.
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FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
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krobinson103
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