and ventilated harness to keep you cool and comfortable

you won't ever feel like you'll overheat

Decreased rear derailleur tension at low gear position

great quality and without a huge price tag behind them

and sternum strap

Box Components Two P9 X-Wide Single Shift E-Bike Groupset - 9 Speed - Shimano HG - Any - No PLP|EMTB Optimised and ventilated harness to keepThe Box Two tier's mission in life is to deliver performance similar to the Box One but without its exotic (and costly) features. With the Single Shift E Bike Groupset you still get the Tri Pack Clutch in their derailleur only it isn't adjustable. The cassette's 12 50T range is optimised for e bikes. The action on the shifter is limited to one downshift per lever swing. The chain boasts the same unique ability to mate with a wide narrow chainring