This is a bolt on upgrade kit for your Blackbone 2 Speed system.

You are purchasing a complete 2nd gear of the ratio selected with a pre-fitted custom high ratio 2nd gear hub which fits onto your existing 2 Speed system!!

REMEMBER, these ratios are extremely high and not recommended for small zenoah style engines, choose carefully as picking a ratio above what your engine can pull will just result in terrible performance.

BLACKBONE 2 SPEED HIGH RATIO 2nd GEAR KIT

£99.50Price
Gear Ratio