Headstock Bearings: BMW G650 X Challenge (2007) Aprilia MX125 To replace: 4X4-14411-00 / 4X4-14412-00

To replace: 4X4-14411-00 / 4X4-14412-00 / 4X4-14451-00 / 98507-06045 / 92907-06600 / 4X4-14453-00 / 90467-20023

55mm centre to centre with 1 spade connector and 1 spark plug cap

1978 & 1979

Aprilia SX 125 (2002-2013)

BMW R100 RS Mono (1986-1992)

Headstock Bearings: BMW G650 X Challenge (2007) Aprilia MX125 To replace: 4X4-14411-00 / 4X4-14412-00Brand new set of head stock steering bearings to fit: BMW G 650 X Challenge (2007). This set of steering stem bearings is designed to replace the original set of bearings on a G650 X Challenge for the years and models shown above. Top and bottom headstock bearings are included. Top bearing: 28mm x 52mm x 16mm. Bottom bearing: 28mm x 52mm x 16mm. Sizes are ID x OD x Depth. If you require different sizes please click here to see our full list of sizes.