Dear Sir/Madam, Type:Mountain Bike Wheel Size:1.95 Frame Material:Steel Fork Material:Steel Rim Material:RUBBER Product Name:2018 Steel Single 21 Speed Standard Mountain Bike/Bicycle COLOR:AS TO ORDER RIM:1.75 ,DOUCBLEWALL TIRE&TUE:1.95,BUTYLE,A/V GEAR:CHINA 21SPEED ,INDEX SHIFTER:RAPIDFIRE- SHIFTER BRAKE:BOTH DISC -BRAKE AMD ALLOY LEVER SEAT:MTB TYPE W/ RAIL SEAT POST:25.4*320MM,W/ O CLAMP Show More