Mountain bike lithium-ion power assisted conversion kit: tri-mode 48V-72V 24-tube 100A controller + SW900 LCD meter + 20X full-throttle grips + Quantum 8-magnetic kit + junction box. Sine-wave tri-mode controller compatible with brushless motors with and without Hall effects. Compatible with 48V 2000W, 48V 3000W, 52V 2000W, 52V 3000W, 60V 3000W, 60V 5000W, and 72V 3000W and 72V 5000W brushless motors with and without Hall effects. Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color:As Shown Material:ABS+PC+Aluminum Alloy Package Contents: 1 x 100A three-mode controller 1 x SW900 meter 1 x 20X full throttle 1 x KT 8 magnetic assist sensor 1 x yellow junction box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.