Serfas E Lume 1200 Headlight Bike Accessories_Bike Racks Different wheel sizes give you There s no doubt Different wheel sizes give you the freedom to run whatever size or type of tire you wish EFFECTIVE 553 562 573 580 C HEAD TUBE LENGTH 90 95 125 155 D SEAT TUBE ANGLE 74° 74° 74° 74° E HEAD TUBE ANGLE 72° 72° 72° 72° F CHAINSTAY LENGTH 420 420 420 420 G WHEELBASE 1006 1016 1028 1036 H BOTTOM BRACKET DROP 58 58 58 58 I STANDOVER 758 775 802 833 STEM 65 65 80 90 HANDLEBAR WIDTH 580 580 580 580 CRANK 165 165 170 170 WHEEL SIZE 700c 700c 700c 700c SEAT POST DIAMETER 27 A high impact Nylon polymer body with USB charging port and integrated mount attachment point houses internal rechargeable Li Ion batteries Battery: LG® 2 Cell Li Ion