SPECIFICATIONS8-28Primary reduction ratio:67/18 (3.722)Secondary reduction system:Chain driveSecondary reduction ratio:37/13 (2.846)Transmission type:Constant mesh 3-speedOperation:Left foot operationGear ratio:1st:39/12 (3.250)2nd:33/19 (1.736)3rd:28/23 (1.217)Chassis:Frame type:Steel tube backboneCaster angle:25.50 °Trail:34.0 mm (1.34 in)Front tire:Type:With tubeSize:2.50-10 4PRManufacturer/model:CHENG SHIN/KNOBBYRear tire:Type:With tubeSize:2.50-10 4PRManufacturer/model:CHENG SHIN/KNOBBYTire air pressure (measured on coldtires):Front:100 kPa (15 psi) (1.00 kgf/cm²)Rear:100 kPa (15 psi) (1.00 kgf/cm²)Front wheel:Wheel type:Spoke wheelRim size:10x1.40Rear wheel:Wheel type:Spoke wheelRim size:10x1.40Front brake:Type:Drum brakeOperation:Right hand operationRear brake:Type:Drum brakeOperation:Right foot operationFront suspension:Type:Telescopic forkSpring/shock absorber type:Coil springWheel travel:96.0 mm (3.78 in)Rear suspension:Type:Swingarm (monocross)Spring/shock absorber type:Coil spring/oil damperWheel travel:71.0 mm (2.80 in)Electrical system:Ignition system:CDICharging system:AC magnetoBattery:Model:YT4B-BS/GT4B-5Voltage, capacity:12 V, 2.3 Ah/12 V, 2.5 AhFuse:Fuse:10.0 A