https://www.pinkbike.com/buysell/3201522/ 19t for sale

 

Will these work with a 12 speed chain?

 

They do. I have a bike that used to rock a 12 speed XTR drivetrain that I "upgraded" to single speed, since microspline cassettes creak so badly. I've been through 2 XTR 10-51 cassettes, and an XT version and all three creak like mad. I can reduce the creaking by tri-flowing the pins but that only lasts a short time. The XT cassette was the least creaky, but it still creaks somewhat. Annoying as hell to say the least. I kept the stock 12 speed XTR chain and XT 32T chainring, got the microspline Boone cog and a Paul Melvin, and the new setup runs smooth and silent. Not sure if this is a good long term solution, but it's working well for now, and allowed me to recycle some of the parts I already had on the bike. I'd ask Boone if he has designed his tooth profile to work with 12 speed HG+ chains, but I think I read that it would somewhere else at some point.

 

 

Ok,

Let me first say this: Bruce Boone is an outright professional. I emailed him a couple days leading up to Christmas and even on the 25th itself he was prompt with response. This was my first time setting up a single speed and had multiple questions in regard to spacing and Bruce quickly responded. From what I remember I placed my order on Christmas Day and received it on New Year's Eve. If some of y'all are still on the fence about Boone, don't be. The products are top notch and the service is even better, may as well give now because the time is coming for you to give everything up anyway.

 

i've been running a boone ti cog off and on since they started making them again a few years ago. Any of you notice that the boone ti cog is noisier than other cogs? my other cogs are CK and WT stainless. they are noticeably more quiet, if not dead silent, compared to the Boone. chainline is perfect. i'm running a SRAM 8spd chain and a White Ind chainring.

i get the tick and creak when out of the saddle. bike has been taken apart and re-assembled, greased, torqued everything. i've also tried different rear wheels. that's why i've come to the conclusion that it's the cog...or possibly the cog/chain combination.

 

I’ve been riding Boone Ti cogs since 2006. Hubs are King, I9 and Onyx. I don’t have any noise from the rear cog.

 

what kind of chain are you using?

 

I switched from AB/WT/Onyx/Kick ass cogs to Boone awhile back. I always use Shimano 10-11 spd chains - usually XT or XTR level, whatever happens to be on sale at the time. I have no complaints about noise from the cog, and life expectancy over aluminum has been great.

 

I ran the SRAM 8 speed chain for a long time. Probably for 15 years, with no issues.
I now run the KMC single speed chain and have no issues with it either.

 

Interestingly, I change the KMC 710 out on my trials bike every spring. Trials bikes are destructive little shits!! 710 on my Middlechild, the chain gauge is good enough to say go/nogo.
Now, KMC has changed their catalog numbers and I have to sort out the new convention.

All singlespeed chains must be approved by a trials bike for safety and durability!!

 

I think I'd got a 10 or 11 speed Shimano chain on mine last time I ran it, start of the year? Cog is about fifteen years old at least.