Replacement Nylon Rollers – Riot MRR Roller J-Hooks

Replacement Nylon Rollers for Riot MRR Roller J-Hooks

Keep your Riot MRR Roller J-Hooks running smoothly with these precision-machined nylon replacement inserts. Designed as a direct replacement for worn or steel rollers, they feature a slightly revised concave profile for improved barbell contact and quieter, smoother roll-off. Compatible exclusively with the Strengthshop Riot MRR Roller J-Hooks — please check compatibility before ordering.

Why nylon? Nylon is tough enough to handle heavy loads while being gentle on your bar's knurling and finish. Unlike metal, nylon absorbs impact quietly, resists wear, and won't rust or corrode — extending the life of both the roller and your barbell. 

Specifications

Material	Nylon
Total height	69 mm
Outer diameter (flanges)	Ø 40 mm
Center bore	Ø 11 mm
Top/bottom counterbore	Ø 26.05 mm (+0.05 / 0), depth 8 mm
Concave radius	R 28.50 mm
Chamfers	2 × 1×45°
Compatibility	Strengthshop Riot MRR Roller J-Hooks only