Bike is a brand new moots rsl cx frame I intend to use as a race bike but also multi purpose for road and also off road. I've previously used wide range sram 1x gearing with 48t front wn ring and an 11-36 cassette. I got used to it and loved it's simplicity. Gaps was not an issue nor was ratio.
It was lacking a bit for really steep climbs.
New build I is running di2 9170 shifters and I have an xtr rear di2 mech. This moots will be a 1x setup also.
I've found a few people who have run 10-40 xtr or sram xx 10-42 and xtr di2 mech without issue.
This setup is great for longer more off road but I'm also interested in the new 3t cassettes 9-32t. I could run a smaller front ring and tighter ratio gearing with no real downside other than price......
Question is will a 9t work with Di2 mech / shifting. Forgive me I've always run sram and Shimano is new to me......
I have a set of eastons new cranks so changing from rings for ride is fairly easy. Ideally a 40t or 42t front ring will give me good road gravel gearing and less weight.
Hopefully some one here can help?
Don't know about you, but I'm not going to be pushing that big of a gear on gravel roads.
42x9 at 100rpm on 700x44s: 38.7mph.
53x11 at 100rpm on 700x25s: 37.8mph.
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Perhaps a 40 ring from with a 9t will give good rollout and nice tight gears still with a decent climbing gear.
Question was more along lines of knowing if 9t sprocket would have issues shifting with and an xtr di2 rear mech.
Thanks for reply.
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