RaceFace 104mm Single Chain Ring

PERFECT! i used it in shimano deore m615, It is very stable and keeps the chain in its place

My wifes new bike came with this same chain ring in a 32T as a 1x11(10-42) setup. The bike has a 27.5 wheel so the 32T was a little too tall of a gear for her since she is just starting out. Basically, with a 32T front, 42T rear and 27.5 tires, her first gear was equivalent to somewhere between 3 and 4 on her old 26 bike. I grabbed this 30T which dropped the 1st gear down to be about equivalent to 2nd gear on her old bike. The cool part is that with the 11 speed cassette and 27.5 wheels, her 11th gear is still taller than her old bike was on the middle chain ring. The only thing to be aware of is that the 32T was able to slide off of the crank without needing to remove it however, the 30T has a smaller inner diameter and required that the crank be pulled to get it on from the back side. This meant I needed to buy the Park Tool CCP-44 since Racefaces cranks are press fit on and do not self extract like the FSA crank on my bike. Just make sure you have the ability to get your crank off before you try to install this.

Bought this for my husband in 2013. Still doing its job so I cant complain. He loves the lime green since its his favorite color. It fits nicely onto his Giant mountain bike and he is very pleased with its quality.

Lightweight.

Chain still drops, but not as often. But 3 stars because of the weight reduction.

Works great at holding down the chain. Looks great too.

Great chain ring, my chain hasnt came off once and Ive road in a lot of mud, 31 miles of it during iceman race in Traverse city Michigan.

I converted my 2x10 SRAM system to 1x10 with this single chain ring. I have 11-36 SRAM cartridge on the rear and this chain ring on the front. I was AMAZED at how much more quiet my drive chain is with this 1x system. Each time I ride, I am stunned that it is whisper quiet while doing bunny hops and drops. It has completely eliminated chain slaps. I used to have a stinger on my 2x10 front chain ring to prevent chain drops while backpedaling over drops and jumps. All that is gone with this single chain ring. I have never had a chain drop since I changed to this gear. When I set this up, I could not pull the chain off this gear with my hands. I grips the chain that well. I am a total fan of this product. I cannot believe how well this works for how affordable it is. Now, nobody has an excuse not to covert to 1x. I even converted the old front shifter to be my dropper seatpost remote. It works very well and look great. It was nice to get rid of the old dropper seatpost remote.

I set this up with a Wolftooth 42t and it works great. The gearing is plenty low and I dont miss the high gears.

Seems nice and solid so far. Still have to give it a proper test ride on my new 1x9 build to make sure the narrow/wide style is enough to prevent chain drops.