Yo, So i am in the proces of building up my Samson Keirin frame, and needed some pics, or opinions. I got a set of DuraAce 7710 Cranks...and I want to mate them to either a DuraAce 47t ring, or a Sugino Racer Zen 47t Ring. Does anyone have an opinion on this setup? Or even better....pics? THANKS!
a.s.

*sigh* Just do what you want man... seriously

Have Tomity gold-plate both you and your bike and you will reach the NJS dao.

I think the 7710 cranks are the splined ones. If so, then they aren't recommended for brakeless street riding - apparently the splines can strip under skid/skip pressure.

Either chain ring will be fine - just choose whichever one you prefer

You are wrong and you are right at the same time.

Brakeless street riding looseness the crank bolts on pretty much any crank set up. When this happens to the DA 7710 it will cause the cranks to strip because play will develop if the bolts are lose. If you keep your crank bolts tight like you should do (by cranking them down every few days) you will have no problems. This by the way can happen on regular square taper cranks its just a hell of allot less common.

The second reason people strip their DA 7710 cranks is improper installation or I should say re-installation. Because the cranks come with self extracting bolts that let you get the cranks off with out a puller some people will put the cranks back on with the bolts still in. This makes it very difficult to align the BB splines with the crank arm and can result in tiny damage to the interface which you wont notice at first and will eventually develop in to a striped crank arm. The solution is simple just take out the self extracting bolts when you are putting the crank arm back on insuring perfect alignment.

These cranks are pretty much the **** by the way. They are super ****ing stiff and light. And I have had them on my work by for a while now with no problems. Austin (NACCC06 winner) rocks these on his brakeless track bike as well. These cranks also came stock on the bikes that Team Puma got. They had no problems. I see Carlos rocking these cranks on a new work bike now too and they are well over 2 years old at this point.

Thanks guys! Any pics? I am getting it all anodized Gold locally in Seattle. Does anyone have a pic of DuraAce cranks mated to a Sugino race Zen ring? THANKS!
a.s.

What ever happened to imagination!

and your belt

what the crap are "pics" going to tell you? that sweet track parts look nice? who cares. ride the thing, or better yet race it... stop your desparate need for hand holding.

What a great, informative post from Anightinthewood.

Thanks.

Aesthetically, I think Sugino looks best with Sugino and Dura Ace looks best with Dura Ace.

A strong-riding friend (professional rider) has no experience with the Sugino Zen ring, but thinks it might have more stiffness and that extra stiffness would matter to a strong rider.

I ride a lot but I wouldn't describe myself as a "strong" rider.

Parts that flex for my friend...well...I don't notice it.
One could attribute that to the difference in strength, or to a lack of awareness on my part, or to an over active imagination on my friend's part.
I should add, though, that my friend's high school age son rides a track bike and has an all-expense paid training scholarship with the US Olympic bicycle team.

I also hear that the Dura Ace crank works better with larger riders, such as myself.
What does that say about the ring?
I don't know.

Personally, if I had the extra cash for an upgrade, right now, I'd go all Dura Ace on aesthetics alone.
Like I said...personally.

i had often wondered why these cranks weren't "recommended" for street riding - thanks for the informative post!