Topstone Carbon 3 GRX - 1X Hitch Mount with a molded memory foam

with a molded memory foam liner with shoc pads for enhanced strap cushioning and comfort

Upper:  Leather / Microfiber lacing harness / 2 Heel Pull-Tabs / 2mm FriXion® RS Toe Rand Rubber

Model No: 5186

With a waist of 88 mm

BOA® H4 Coiler system

Topstone Carbon 3 GRX - 1X Hitch Mount with a molded memory foamOne chainring, endless possibilities. The Topstone 3 GRX 1X delivers simplicity without sacrificing performance. A Shimano GRX610 820 blended group keeps shifting precise and reliable, while KingPin suspension takes the sting out of rough terrain. WTB tires keep you connected to the trail, making every ride a good onewhether its a quick lap or a full day escapade.