My question is, what would be the best sprocket to remove?
The 11-28T cassette has the following ratios:
I have to keep the 11T don't I as this is the only sprocket compatible with the lockring?
here are the 7900 (10)spd cassettes
http://techdocs.shimano.com/media/techd ... 728250.pdf" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;
here are the 9000 (11)spd cassettes
http://techdocs.shimano.com/media/techd ... 807221.pdf" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;
The DA9K (11) spd, 11 - 28 cassette has to be the most "unfriendly" in terms of being easily modified. Like all the cassettes you won't be able to pull any of the last (5) cogs. If you pull the (12)tooth cog it may 'feel odd'. If you pull the (17) you would have a jump from the (15) to the (19), not good.
I believe you can pull the (11) tooth cog with no problems. You would have to install a lockring for a (12) tooth cog. And you would need a spacer behind the cassette.
In this Thread the O.P. pulled their (11) tooth cog.
viewtopic.php?f=10&t=108205" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;
Mid way down on the 2nd page the O.P. describes pulling the (11)tooth cog.
Swapping the 11 - 28 you have for an 11 - 25 would be ideal. You could easily pull the (16)tooth cog.
Let us know how it goes.
So if I remove the 11T, I'll need to change the lockring. The spacer that I need behind the cassette will presumably be included with the 9000 cassette? No other spacer needed?
Need to find a 12T lockring then.
The DA9K wheels are shipping with the spacer required to run the wheel as a (10) spd wheel.
Since that's what you're going to do, run a (10)sp cassette, contact a bike shop and get the spacer you need. It doesn't have to be a DA9K spacer. Many companies make cassette spacers. Just make sure you space it for a proper fit of the cassette.
Let us know how it goes.
The outgoing 10s 'low spline' specification was introduced on the 8 speed hyperglide spline in 1992. And all the way till 7900, they have been completely compatible forward and backward compatible. 2012, after 20 years, they finally introduce a new standard that's still backward compatible to fit all the 8,9 and 10 speed cassettes. ( albeit, you can't fit 11s cassette on the older hubs )
The only abnormally along the way was during the introduction of the 7800 10s group, they tried to introduce the new 'tall spline' hyperglide freehub (in a bit to use aluminium freehub body) that was not backward compatible with older cassettes. BUT ... the 10s 7800 cassettes were still completely back compatible with older hubs and splines. But that was quickly phased out within less than a year due to backlash.
As for Campag ... guess it was conveniently forgotten about what happened when they introduced their 9 speed freehubs huh ??
- Has anyone try it with 11speed conversion cassette such as the one from Wheels Manufacturing?
- or would I be better off with just get a campy freehub for my wheels and use a chorus 11speed cassette
There is a thread in the Road Index for this...
I have one bike with D Ace 9000 and have put a 12-28 cassette on my Mavic wheels and everything works fine. However, I’m building up another steel bike with some older SRAM Force for which I have some wheels with a 12-27 D Ace cassette. Again, works absolutely fine in that configuration.
1) Can I run a 10 speed cassette with the 11 speed 9000 levers? What I want to do is basically go back to using 10 speed for my wheels.
2) Can I use the wheels with the 11 speed cassette and get it to work with the SRAM? Presume removing a sprocket!
Appreciate any help on this.
KB - I have a customer who has two ten speed and one 11 spd bikes and he'll occasionally switch wheels and forget about the different cassettes. Through this, I have found that there is simply no way for what you're trying to do to work. You can get it to work OK through a few gears but it will be awful in the rest.
Tried it in my Di2 11 bike and it all worked perfectly.
The 12 and 13 slot together so you can only remove the 14, 15, 16 or 17
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