Check the listing for details. SATORI UP2 + Adjustable Ebike MTB Stem Height Bicycle Riser 90mm, 31.8mm Bar. Condition: New. Listed at 43.74 USD. HEAVY DUTY FOR E BIKE: SATORI UP2+ is the ultimate adjustable stem for the top speed: 45km or 28miles/hour E-Bike. Two bolt design is to ensure rigidity and to maintain handling efficiency. The stem is fully adjustable from Angle: 0¼ to 90¼ with stem extension of 90mm. With its wide adjustable range, it can set up a comfortable upright or racing riding position easily.INTERNAL CABLE ROUTING: Internal cable routing headset and stem for E bike. It is good to run 2 cables through the adjustable stem.COMPATIBILITY: The stem is compatible with 1-1/8” = 28.6mm fork steerer only. NOT compatible with 1” fork steerer. Handlebar bar bore: 31.8mm only, NOT for 25.4mm. Please check your bike fork and handlebar size before purchase.STRONG & LIGHT: The professional level stem is made of 3D forged alloy which is much better than other alloy. Weight: 414g=0.91lbs. EASY TO USE: Simply using the adjustment bolt to achieve your perfect cycling position. Satori’s special design and fine machined joint ensures no handlebar movements and safer riding MATERIAL 3D FORGEDEXTENSION 90BAR BORE Ø31.8 (only 90mm)STEERER Ø28.6 mmANGLE 0˚~+90˚LENGTH 68 mm (Steerer clamp insert 41 mm)WEIGHT 398 g Please choose carefully and check your bike suitability - Returns for incorrect purchases may not be accepted.