SEARCH YOUR BASKET No. Items Total Amount £ CHECKOUT                  Series GR-B Guide rollers Ball bearing bore with sealed bearing. Minimal rolling resistance. Operating temperature -30°C to +80°C. Click on a product below for full technical specification. Polyamide 6 (nylon) Guide Roller For further accessories including threadguards, axle material, threaded stems, solid plugs and whatever you cannot find please contact us.