Hign-concerned Chemical:NONEis_customized:YesMaterial:Aluminum alloyUse:Road BicyclesType:Brake LeverClamp Diameter:0Width:300 - 400mmOrigin:Mainland ChinaMaterial of bicycle handlebar extenders:Aluminum Alloycolor:silver,gold,blue,red,black12cm Bicycle Handlebar Extender Fork Stem Rise Up Extension Heads Up Black Bike Fork Extender MTB Mountain Bikes Cycling Part Type A Features: material: Metal Color:silver,gold,blue,red,black Size: Length 12cm, circle diameter 3.5cm Product: bicycle handle riser Usage: It is installed between the handlebar and the front fork to increase the handlebar height for adjustment, especially suitable for long-distance cyclists. Material: aluminum alloy Size of 4 washers: 1pc 1cm and 3pcs 0.5cm aluminum alloy washers Surface treatment: aluminum oxide. Dimension: height 12CM, inner diameter of the lower tube (contact with the front fork) 31MM, outer diameter of the upper tube (at the vertical fitting of the heel handle) 28MM Suitable models: ordinary mountain bikes, small wheelbarrows, folding coasters Type B: Headlight Mount Bar / aluminium alloy / Red,Blue,Black / 10,20,30cm(Dia.) Type C: Handlebar plug 2pcs / aluminium alloy / Black, silver, red, green, gold,blue / 4.3*2.3cm(L.*Dia.) Specification: high strength CNC machined 6061 T6 aluminum alloy. suitable for mountainbike to climb the handlebar fork shaft. can extend the fork shaft by 35mm. base diameter: 1-1/8 "(28,6mm) fork shaft diameter: 28,6mm (standard) How to install: 1. Use STEM-UP on the fork shaft and place height plate on STEM-UP up to their preferred height level for their stem. 2. Trunk and wheel in the same direction and highten tensioning screws of the trunk. Notes: 1. Please understand there may be mild deviation exist. 2. Due to the lighting and monitors, there are slight differences between the picture and the real item. Package Content: 1 * Handlebar Extender Type B: Headlight Mount Bar / aluminium alloy / Red,Blue,Black / 10,20,30cm(Dia.) Type C: Handlebar plug 2pcs / aluminium alloy / Black, silver, red, green, gold,blue / 4.3*2.3cm(L.*Dia.)