We first spotted them at NAHBS on Black Sheep’s bikes, and now Wolf Tooth Components is developing a full line of “Drop-Stop” chainrings for 1×10 and 1×11 drivetrains. The tooth profiles use alternating thicknesses, similar to SRAM’s stock XX1 chainrings, to allow you to run the single front ring without a chainguide…provided you’re using one of the newer clutch-type rear derailleurs.
To clarify the headline a bit, it’s any 104BCD crankset for their “standard” chainrings, or any modern SRAM crankset by replacing both the spider and rings with their single-piece ring.
According to founder Mike Pfeiffer, he made one so he could run XX1 on his fat bike or run a 1×10 without a guide. He soon found there was quite a bit of interest. And demand. So, he made a business of it. He told us the 7075-T651 billet aluminum’s being cut now and the first production rings should be available in 2-3 weeks.
Initially, here’s what’s on tap:
- 104 BCD: 30/32/34T
- SRAM direct mount: 32/34T
- Middleburn 30T snowflake pattern optional
For tech geeks, a 30T chainring on a 104BCD spider is putting the bottom gap between teeth pretty darn close to the top of the spider. To keep things running smooth, it has a 2mm inward offset so the chain won’t contact the arms. It’s threaded, so you’ll need a standard set of chainring bolts to install it. The only concerns mentioned are potential mud buildup and the minimal amount of material at the mounts could be an issue for those routinely hitting rocks and logs with their chainring. Bash guards are recommended if that’s your style of riding.
Pfeiffer says the benefits of their chainrings are that they enable use of XX1 with any brand crankset and enable 1×10 drivetrain with no chainguide & any brand crankset. For those looking to upgrade/convert their system, this saves quite a bit of coin compared to getting a new crankset. He says they’ll also work just fine for singlespeed, though they don’t offer any real advantage over other rings for SS – the benefit is really for 1×11 & 1×10.
Many more sizes and mounting options are promised, some of which are listed on their website. Oh, and it’s all made in the USA.
The concept’s picking up steam – we recently posted Absolute Black’s forthcoming design for the same cranks.