Shimano GRX FC RX 820 chainring, 12x1-speed, 110mm bolt circle diameter (asymmetrical), 40 teeth
The GRX chainrings feature Shimano’s Dynamic Chain Engagement+ tooth profile, which ensures optimal chain retention, particularly on rough terrain. Due to the asymmetrical 110mm bolt circle with internal bolt mounting, these chainrings are only compatible with GRX cranks.
Herstellerinformation: SHIMANO INC., 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan, www.shimano.com | EU contact: Shimano Europe BV, High Tech Campus 92, 5656 AG Eindhoven, The Netherlands, www.shimano.com