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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 02-20-07, 09:19 PM   #1
skanking biker
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easy crank question

Ok--i have tried the search function and perhaps i am too drunk, but can someone please explain to me the difference b/t the sugino rd and xd crankset?
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Old 02-20-07, 09:21 PM   #2
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130 (rd) vs 110 (xd) bcd
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Old 02-20-07, 10:28 PM   #3
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nother dumb one here: is 110 bcd a common chainring size?
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Old 02-20-07, 10:32 PM   #4
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edit: oops--double post
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Old 02-20-07, 10:38 PM   #5
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as i understand it, it is common with certain types of drivetrains, like triples perhaps? it is relatively easy to find both 110 bcd and 130 bcd chainrings, though 1/8" might be more difficult to come by in 110...
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Old 02-20-07, 11:24 PM   #6
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Quote:
Originally Posted by skanking biker
nother dumb one here: is 110 bcd a common chainring size?
Yes. Simple (and not dumb) question, simple answer. It is the standard for "compact doubles" and was for all five-bolt MTB chainwheel sets up until just a few years ago. There are tons of 110 or 110/74 cransksets out there, so chainring availability should be just fine for the foreseeable future.
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Old 02-21-07, 01:24 AM   #7
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I have a 4 bolt 110 bcd crank,... i have one chainring.
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Old 02-21-07, 07:04 AM   #8
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I have a 4 bolt 110 bcd crank,... i have one chainring.
Are you sure that's not a 104? There's no mention of it at all here, and Sheldon is usually pretty danged comprehensive...

http://sheldonbrown.com/gloss_bo-z.html#bcd
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Old 02-21-07, 12:05 PM   #9
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ah yes its 104.. i have truvativ mtb cranks theyre quite nice but a bit heavy
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Old 02-21-07, 12:11 PM   #10
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110 is totally my favorite BCD. No joke.
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Old 02-21-07, 12:14 PM   #11
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Thanks for the info. I was thinking of getting a set of sugino XD's for my IRO SE.
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Old 02-21-07, 12:25 PM   #12
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isn't 110 standard for 3 piece BMX? in that case wouldn't 1/8 be pretty common?

i use 110 3/32 right now and have never had a problem finding chainrings.
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Old 02-21-07, 01:05 PM   #13
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Originally Posted by killsurfcity
isn't 110 standard for 3 piece BMX? in that case wouldn't 1/8 be pretty common?

i use 110 3/32 right now and have never had a problem finding chainrings.
It is, but very few 3-piece BMX cranks even use a spider anymore, let alone have a standard BCD. Thus, there aren't a lot of BMX chainrings that are 110. Luckily, Rocket Rings are super-cheap and always there.
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