The e*Thirteen Guidering is perfect for any single chainring application -- singlespeed or 1 x configurations, with or without a chainguide. It's CNC machined from long wearing 7075-T6 aluminum. It's made to fit any four arm crank with a 104mm bolt circle. It's also compatible with 8-, 9-, and 10-speed chains. Guiderings are available in even and odd tooth counts from 32t to 40t, they come in anodized Black.Ultra-tough aluminum construction lasts for seasons of abuseA 104-millimeter bolt circle diameter offers compatibility with nearly all mountain cranks and chainguidesVariety of anodized colors lend some bling to your rig
a All Mountain Rider
from Mims, Fl
Date Reviewed: March 25, 2012
Strengths: Different tooth options, 10 speed compatible, light weight, rampless ring for 1x setups, price.
This ring worked great for my 1x10 setup dropping from a 33t middle ring to a 32t with a outer bashguard. Using a lower chain guide I never have a problem dropping the chain. It also seems to be no wear on the ring after 3 months, it still looks brand new.