RapidRacerProdcuts Bearing Kit 688 2rs nr. 1 adapter The Rapid Racer Products Bearing Kit Adaptors can only be used in combination with the Rapid Racer Products Bearing Press & Extraction Tool to replace the bearings of your suspension swingarm. In the image you can find which adapter is suitable for which bearing. Specifications: Color: blue, red Material: steel Bearing name: 688 2rs Kit number: 1 RRP code: BPET688 Bore size: 8 OD size: 16