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- CommentAuthorterrible_one49
- CommentTimeJan 26th 2009
This has been debated I'm sure a lot, but on a single speed bike, what are the advantages of running a larger gears like a 50-15 (90.0) compared to a 40-12 (also 90.0)?
Clearly the smaller chainring and cog is less weight, and less chain is used as well. But even though they are the same gear ratio...what about the feel of them, and with racing in mind, if one would be faster. I know they say the larger gear has less friction, and smaller gear has more chain tension. What else? -
- CommentAuthorthe rabbi
- CommentTimeJan 26th 2009
less friction = faster. and a loose chain is a fast chain. -
- CommentAuthorRideEveryday
- CommentTimeJan 26th 2009
To make it simple:
Larger sprocket/cog:
Less tooth wear
Less chain wear -
- CommentAuthorwowzah
- CommentTimeJan 29th 2009
the rabbi got it right
less friction with larger gears = faster
48 X 16 is smoother and faster than 42 X 14 -
- CommentAuthorAll Filler
- CommentTimeFeb 1st 2009
And bigger chainrings look better. :) -
- CommentAuthoralexisfaster
- CommentTimeFeb 1st 2009
CommentAuthorthe rabbi CommentTime6 days ago quote
less friction = faster. and a loose chain is a fast chain.
actually if your chain is loose your power transfer is less efficient which makes you slower. it shouldnt have slack but it shouldnt be too tight. -
- CommentAuthorthe rabbi
- CommentTimeFeb 2nd 2009
i'm gonna go ahead and trust the track director at adt on this one. -
- CommentAuthormakemvmnt
- CommentTimeFeb 16th 2009
I have a peugeot conversion with a stronglight crank and it seems it will be easier to use the 52 tooth ring instead of the 40t because of spacing issues. what's the appropriate cog size for a 52t if i wanna commute but my routes have some grades? -
- CommentAuthorSteven Bell
- CommentTimeFeb 16th 2009 edited
Posted By: makemvmntI have a peugeot conversion with a stronglight crank and it seems it will be easier to use the 52 tooth ring instead of the 40t because of spacing issues. what's the appropriate cog size for a 52t if i wanna commute but my routes have some grades?
I run a 52 tooth ring also, and use a 17 in the back. I find that its a little short for bombing down hills, but it has 17 skid patches, so you can control your speed without going through tires left and right (or just use a front break). As for climbing and flat ground, I find it to be really comfortable. -
- CommentAuthormakemvmnt
- CommentTimeFeb 16th 2009
Posted By: Steven Bell
Posted By: makemvmntI have a peugeot conversion with a stronglight crank and it seems it will be easier to use the 52 tooth ring instead of the 40t because of spacing issues. what's the appropriate cog size for a 52t if i wanna commute but my routes have some grades?
I run a 52 tooth ring also, and use a 17 in the back. I find that its a little short for bombing down hills, but it has 17 skid patches, so you can control your speed without going through tires left and right (or just use a front break). As for climbing and flat ground, I find it to be really comfortable.
Perfect. The more skidpatches the better, you read me well I plan on going brakeless so this is very beneficial. Will i find it harder to lock my legs though with this ratio? -
- CommentAuthorSteven Bell
- CommentTimeFeb 17th 2009
Posted By: makemvmnt
Perfect. The more skidpatches the better, you read me well I plan on going brakeless so this is very beneficial. Will i find it harder to lock my legs though with this ratio?
I haven't had trouble locking my legs up, but i haven't relied on just skidding. seattle drivers suck, so i have an "oh sh*t" break. But i don't see skidding with this ratio being a problem.
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