depends on the cog. but you'll probably be spinning a lot to keep up.

All I want is some blue cranks, that's it.

I'm curious about these too. they say they are comparable to the RDs but just have the 144 pattern... and are an extra $20. What benefit does that bolt pattern give anyway?

well that's cool with me. It's a dura ace for 10 bucks so I figure it's worth the money to learn on. I'd spend 15 on a rocket ring that I'd trash in a month.

None really. Some people will tell you about power transfer or some other pseudo-scientific BS, but 144 is just tradition. The only advantage I can think of is the ability to borrow chainrings at the track, if need be.

no man, that's just my login name for some strange reason. I ride street bmx, so that's why I chose that name. I plan to make some trips to the closest velodrome this fall and winter though...

how many otheres have the NJS stamp, HUH? campy sux!, DA sux.

I rode 42x16 for quite a while and was very happy with it, and am now even happier with 44x16

I run a 42-15 which is 74 gear inches. Not bad to start or to stay with but it really depends upon your abilities and the hills you need to climb. btw, 44-16 is ~73 gear inches(using 700 x 25c)


In comparison, a 48-16 would be 79 gear inches.

42-15 @ 100 rpm = 22mph
48-16 @ 100 rpm = 23.5mph

Swapping cogs gives you more results than swapping the chainring.

But the big chainring looks cool so that has to be taken into consideration.

I like my Suntour Superbe PRo.... get em haha...

Then i like my Campy Pistas....... ooo theyre hot and Rare....

But i do like my 75s..... but theyre so common....

yeah! he should get street cranks! uhhh....