Shock - Rear - 13.5 Inch - Hammerhead, TrailMaster, Yerfdog Go-Karts 100699 Engines come with a 30

Engines come with a 30 day warranty

Chinese engine output shaft for many makes and models of 50cc scooters

Side of air box is removable (4 screws)

Fits many 150cc scooters including the Tao Tao ATM150A Evo

Shock - Rear - 13.5 Inch - Hammerhead, TrailMaster, Yerfdog Go-Karts 100699 Engines come with a 30Rear 13. 5 Inch Shock Absorber This REAR adjustable shock fits Hammerhead and Trailmaster go karts as well as some Yerf Dog go karts. May fit many other atv's and go karts. Please check measurement closely to determine suitability. Shock specs: Overall Length: 375mm (14. 75 in) Distance between mounting holes: 343mm (13. 5 in) 5 different adjustment settings 10mm (0. 39) mounting holes Mounting end widths: 20. 2mm (0. 8 in) 8mm coil spring Coil spring