Weight3.5 KG ( 7.72 lb) Wheel size24 / 26 / 27.5 inch Travel112 mm ( 4.41 inch) / 203 mm ( 8 inch) Steerer tube28.6 mm (1.13 inch) 1-1/8” to 1.5" (Taper) AL-7075 Drop out/Crown materialForging, AL-6061 Outer Tube42 mm / AL- 6061 Inner Tube35mm / AL-7075 Dark Hard Anodized Down tube20 mm ( 0.79 inch ) Axle x110mm Thru-axle Design AL-7075 FeaturesInverted fork Inner structureCoil spring AdjustmentsPreload / Rebound / Air Pressure Adjustable Barke typeDisc only ( Post mount) Riding styleDH ColorBlackElectric Bike Accessories manufacturers website:http://www.mdebike.com/electric-bike-accessories/