Junior Gearing and 11 Speeds

Discuss light weight issues concerning road bikes & parts.
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by xnavalav8r

My son is running 42/30 Extralite chainrings whith Shimano Udi2 (10-speed) and they work perfectly. He is limited to 5.78m rollout over here so that results in a max gear of 42/15. unfortunately, when using anything larger than a 13t outer cog, the chain makes contact with the seat stay. Very frustrating....!!!!

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by monkeyburger

Could you use the existing cassette, removing the 12t cog and replacing it with a (custom) spacer? you would have 10 cogs on 11 speed spacing but technically wouldn't be blocking off gears.

...finding my inner Onoda-kun...

by Weenie

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by xnavalav8r

nah... the current Udi2 is 10 speed only.

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by Oswald

Is there any info on when/if Shimano will release junior gearing?
It's best to just use a specific junior cassette instead of messing around with cassettes and front rings. Because they still need to be able to switch wheels in a race from the neutral car.

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by F45

There's an easy solution - put a 10 speed cassette with Ultegra 6800 and adjust the mech travel.

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