seaden

why are is this wheelset for 10spd only? I have a 9 spd dura ace bike and would love these on them...is there anyway?

Rutnick

the 10 speed hub body is different than the 9 speed.

9 speed will accept 10 speed cassettes. 10 speed hub body is for 10 speed only.

waterrockets 

Well, this 10-spd hub body may be only for 10-spd. Shimano 6600 Ultegra hub bodies, for example, will accept either, but require the adapter ring for 10-spd.

seaden

that is too bad. I really liked that wheelset. I guess I'll just get a mavic set again

joshalope

Not to hijack this thread, but does anybody have an experience with this wheelset? I'm in the market for some new wheels and this is one of the contenders.

SpongeDad

Since the difference is in the hub shell, is it possible to swap a 9sp shell onto a 7801 wheel?

I have a pair of Kysrium SLs with a 9sp hub (so it also fits my 10sp cassette with the ring spacer). I'd hate to think that some day I'm going to be hosed is I have to replace the shell (kinda the reverse problem).

bikepro

I assume you are talking about the 7801 SL's. If so, I've had them for about 2 weeks and think they are great. Since they are radial spoked, you feel more road vibration and jolts -- as compared to a cross 3 wheelset. I've also switched to the Hutchinson Fusion 2 tubeless tires. They are a little harder to mount, but the ride is very nice -- similar to tubular. You can run then at a lower pressure -- for my weight, that's 100 PSI rather that 110-120. The weight of the tubless is about the same as a normal tire and tube.

nitropowered

I talked to a Shimano rep about a 9-speed body to replace the 10-speed body and he said they have no intention of making such a product.

Usually with Shimano, you can call BS on that statement but they are really pushing 10speed now so I highly doubt they would come out with a 9speed hub body replacement

seaden

darn it!

joshalope

Thanks for the info. I guess this is the future of tire technology. The convenience of clincher with the smoothness of tubular. I didn't realize that the tubeless setup would weigh the same as a clincher and tube. Anyway, be sure to post a full report once you get some miles on them.

FormerBMX'er

From my experience, Shimano wheels are sub par. The 7801's are heavy, hard to true, and overpriced, not a huge loss IMO.

Dick Rhee

I have the 7800's. I don't know if the 7801s are any stiffer but I'm giving some thought as to selling my wheelset and picking up a pair of ksyriums since they are noticeably stiffer. The problem is that whenever I get out of saddle the back wheel hits each side of the brake pad with every pedal stroke, even with the brakes adequately opened up. FYI, I'm 165 lbs.

8Lives

Going on memory, they were $50 more than Mavic Ksyrium SSC SLs and weigh (if I recall) 15 or 20 grams less.

Regardless, they work very well for me.

oilman_15106

I know 3 LBS owners who think the move from 9 to 10 speed and more important the Microsoft style of making 9 speed obsolete is the dumbest thing Shimano has ever done. More and more wheels are appearing with 10 speed only hubs and this is just sad. Maybe some smart people will come up with a 9 speed cassette that works with the new hub? What's next a 15 speed rear with a string drive for a chain.

fogrider

I'm sure there will be some company that will make a cassette for the 10 speed hub. miche or scam.

shogun17

convenience? You still have to carry a tube to repair a tubeless. If you don't want tiny little holes leaking air you have to fill it with a latex sealant.

The 10 speed splines are just deeper. If you really wanted to you could grab a file and deepen the cassette splines on a 9-speed. Or just do it to the spider, use 9 speed spacers and 10-speed cogs. Or even just get a 10 speed cassette and use 9 speed spacers leaving out a cog. I have no idea if any of those will work, otherwise you may be out of luck.

shogun17

Noticeably stiffer than what? They are a fairly flexy wheel.

bikepro

Yes, compared to tubulars, tubeless are more conveneint. I rode tubulars until the early 90's when I felt that clinchers were good enough. To reapir a tubeless you can use a tube temporarily, and then patch the tire when you get home. You can also repair it with latex sealent.

Who knows if tubeless will replace normal clinchers -- it's not as clear a choice as when clinchers replaced tubulars for all but the last die-hard riders, or for track or professional use.

What is certain howerver: You have another choice in tire types -- which is always a good thing.