Bosch CX one piece chainring recommendations

davosaurusrex

E*POWAH Master
Apr 21, 2018
619
368
Worthing
I have a carbon 2023 Orbea Wild and the steel E13 chainring that it comes with is fine in the dry but suffers from horrendous chainsuck in wet, gritty conditions (Surrey), I'm running it with 11 speed Linkglide so an LG500 chain. I bought an XX1 chainring but due to the way the chainguide fits on the Wild it clashed with the alloy spider and I had to remove it when it started throwing chains on rough trails so I could refit the chainguide. I also have a spider for a 108BCD ring which is better but very close and will grind with mud etc on it.

Any recommendations for a decent (quiet, non-chainsucky, preferably steel) one piece chainring? Don't say Hope because they aren't all that (as much as I like some Hope stuff). I do like the look of the E13 Helix but they are expensive for an alloy ring and it's not like the steel one I have is much cop
 

Emteebee

New Member
Oct 27, 2024
16
8
Netherlands
@davosaurusrex have you found a good non-suck chainring meanwhile?
I recently replaced the chain (Shimano XT), got bad chain suck in wet/mud but it was obvious the chainring was worn.
Replaced the chainring for a new KMC, so now I have new chain & chainring but still (slightly improved) chainsuck in wet/mud conditions. Looking at it, the chain sort of got stuck due to the mud sticking within the teeth and chain. A quick water flush from bottle fixed it but kept on returning when taking mud bath.
Recommendations anyone?
 

davosaurusrex

E*POWAH Master
Apr 21, 2018
619
368
Worthing
I got a steel RaceFace in the end, defo better, not sure I've ridden it in quite as manky conditions as those that caused the e13 to suck so badly
 

Emteebee

New Member
Oct 27, 2024
16
8
Netherlands
I got a steel RaceFace in the end, defo better, not sure I've ridden it in quite as manky conditions as those that caused the e13 to suck so badly
Thanks, I was looking at e*Thirteen vs RaceFace, and the latter specs says specifically optimized for Shimano chain. So I just ordered RaceFace. Crossing fingers it works. My current KMC has no narrow-wide profile, and teeth appear relatively long so I have good hopes. Will keep posted.
 

Husky430

E*POWAH Elite
Jul 8, 2019
646
1,053
Glasshouse Mts - Australia
Thanks, I was looking at e*Thirteen vs RaceFace, and the latter specs says specifically optimized for Shimano chain. So I just ordered RaceFace. Crossing fingers it works. My current KMC has no narrow-wide profile, and teeth appear relatively long so I have good hopes. Will keep posted.
Just put the Race Face one on my bike and all's good after the first couple of rides, don't think you'll have any complaints. Did the whole lot at once, cassette, chain and sprocket, even greased behind the outer seals on the motor.
It had pretty much done 4000km with chain about 3000 of that. Ended up going with a solid pin version, can't remember the name but cheap as chips.
How many Kms have you got out of your drive system or are you changing the sprocket due to damage? I'm fortunate to ride predominantly in dry conditions so I think this really helps with the longevity of a lot of consumable components.
 

Emteebee

New Member
Oct 27, 2024
16
8
Netherlands
No experience yet but aiming for lots of kms with 2 hot waxed chains. I have just purchased the bike weeks ago. Replaced chain which was at 0.4% wear to try and see what’d happen. Experienced chainsuck first ride and replaced chainring for a new KMC, old one was visibly worn and measured 0.6mm wider per gap. Next 90km ride all well but wasn’t that muddy. Today chain slammed 3x under parts of ride that really muddy. Curious for the RaceFace, which looks like it has far better design than the KMC. Also ordered the 10-12-14-16-18 sprockets. The cassette had been replaced with last chain according to shop. The chain in highest gear is jumping, last owner had 41km/h average so it makes sense he used the smallest cog(s) mostly. I’m gonna ride all this to the bone and then go for XT cassette, 4 XT chains and new chainring to see how that behaves.
 

Bones

E*POWAH Elite
Subscriber
Apr 3, 2020
898
1,184
Harrogate
I've never had chain suck or even the need for wax or a chain guide with this setup. And it lasts for a few thousand miles of hard MTB riding.
PXL_20241107_105329036.jpg
 

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