Box Four 8S Drivetrain Bundle
Our Box Four tier is for those people who know less can be more, and surely 11-42T is plenty of range for an 8-speed cassette. This derailleur still has the Limited Slip clutch but with 42T arrives with a more compact cage that is more up off the rocks. The custom 8-speed chain is built for abuse, although it's sophisticated enough to hold onto a wide/narrow chainring. Push through fewer gears with a no-nonsense shifter. This combo will transport you to 1 by territory for less than $200.
- 8 speeds is more robust
- Easy to use Twin Lever Shifter actuation
- Low maintenance derailleur
- High durability cassette and chain
With the trend to 10, 11, 12 and now even 13 speed cassettes, the gears and chains are getting thinner and more fragile. With a mid-drive motor you need fewer gears but more strength in drive train components. This is something Box noticed and did something about. Depending on the mid-drive motor, you can be putting between two and over ten times the typical human power through the drive train. By taking a step back to 8 speeds, Box was able to beef up the drive-train to withstand these magnified ebike power levels. Although the 8-speed drive-train is not rated for e-bikes like the e9S, the 8 speed is more robust than 10, 11, 12 speed drive trains that cost a lot more.