Shimano 10 speed only freehub ?

[Dale Alan]

I bought this set of wheels from the local shop,Hub says Formula . I can't find any info on that. Told the owner I was using an 8 spd cassette and he sold me these takeoffs . I just tried to put the cassette on and no go,slides on until it hits the step . Google leads me to believe it is 10 speed only,something only made for a few years ? Here is a pic of the freehub . My setup is for 8 speed,looks like I am out of luck . Thanks for any help,this one is new to me.I have barely graduated from freewheels to cassettes.

[kramnnim]

There's a thread about these...maybe on the second page of this forum.

[Dale Alan]

Thanks ,found it . Sorry,my search must have been worded wrong .

[cmg]

it will only work with Dura ace cassette 10 spd?

[Ken Robb]

I think Dura Ace 6800 hubs were 10 spd only but the same vintage Ultegra 6700 were good with 8,9,10 speed.

[Pete Mckeon]

I think Dura Ace 6800 hubs were 10 spd only but the same vintage Ultegra 6700 were good with 8,9,10 speed.


for 8 and 10 for me:)

[rwsaunders]

Dura Ace 7800 hubs were 10 speed only...7850 and 7900 went back to 8/9/10 speed compatibility.

[cmg]

it will only work with Dura ace cassette 10 spd?

the freehub body looks like a FH7800 which will only work with a Dura Ace 10spd cassette. may have been fitted on to the formula hub. sell it on eBay and buy another rear wheel.

[oldpotatoe]

Dura Ace 7800 hubs were 10 speed only...7850 and 7900 went back to 8/9/10 speed compatibility.

Don't forget 7810, also 8/9/10s...confused yet? A example of how a BIG company can change things, rapidly and frequently, w/o regards for those who buy their stuff. BUT it was 'nice' how they realized that their new whizbang 10s stuff wasn't backward compatible...like 7900 wheels/hubs(ooops) and 11s.

Now where did I put my lathe????

[Ti Designs]

A number of my friends had the same issue, it took me almost 10 minutes to pull the cassette body, put it on a lathe, turn down the splines so the non Dura-Ace cassette would fit and put it all back together.

If we all lived by what Shimano says will work, tandems wouldn't exist...