Box Components Four 8-Speed E-bike Cassette

The Box Four E-Bike Cassette offers high gears with more teeth to withstand the rigours of modern E-Bike riding. Adding an extra tooth to each of the three highest gears provides increased durability and decreased wear by distributing the load over a larger area! Box Four adapts our Prime 9 philosophy of durability, simplicity, and reliability at a great price point. All sprockets are stamped from steel, given our durable black coating and then the larger sprockets are pinned to each other with spacers for easy installation.

Box Components Four 8S Wide Single Shift Groupset E-Bike Upgrade Kit

Our Box Four tier is for those people who just want less fuss! You're fond of Prime 9, but know 8 is enough, and surely 11-42T is plenty of range for an 8-speed cassette. Our derailleur still has the Limited Slip clutch but now arrives with a more compact cage. The custom 8-speed chain is built for abuse, although it's sophisticated enough to have its own Wide/narrow chainring. Push through fewer gears with a no-nonsense shifter. Ideal for E-Bikes

Box Components Four 8S Wide Multi Shift Groupset

Our Box Four tier is for those people who just want less fuss! You're fond of Prime 9, but know 8 is enough, and surely 11-42T is plenty of range for an 8-speed cassette. Our derailleur still has the Limited Slip clutch but now arrives with a more compact cage. The custom 8-speed chain is built for abuse, although it's sophisticated enough to have its own Wide/narrow chainring. Push through fewer gears with a no-nonsense shifter.  

Shimano FC-M311 Altus Square Taper Chainset

Miche Primato 8x Campagnolo Cassette

Primato 8x Campagnolo Cassettes Miche cassettes are engineered in Italy to give you complete compatibility with your relevant choice of components. Ramping and shift positions are largely kept the same as the original manufacturer but Miche give you alternative ratios, great performance, precision machining and keen pricing.

SRAM Centera Twist Shifter - 9 Speed Rear 21 fits Shimano 9 SPEED

SRAM MRX Twist Shifter - 3 Speed Front fits Shimano 3 SPEED

SRAM X4 Shifter - Trigger - 8 Speed Rear 11 8 SPEED

SRAM X4 Shifter - Trigger - Set 3x8 8 SPEED

SRAM 3.0 Shifter - Grip Shift - 3 Speed Front 3 SPEED

SRAM PowerPack - PG-830 Cassette / PC-830 8 Speed Chain

SRAM X4 Rear Derailleur 7/8/9 SPD LONG CAGE

SRAM Spare - Rear Derailleur Pulley and Inner Cage EX1 8 Speed

SRAM Rear Derailleur EX1 1x8 Speed Long Cage Black (Max 48t) 8SPD LONG

SRAM Powerlink Silver 8 Speed (4pcs) 7/8 SPEED

Shimano RD-M310 Altus 7/8 Speed Rear Derailleur - SGS

Halo Vapour 35 Stealth 27.5" MTB Wheel

Shimano FC-TY501-2 46-30T Chainset with Chainguard

Shimano CS-HG31 8-Speed Cassette

Bontrager Kovee TLR Boost 27.5" Centerlock Disc MTB Wheel

Renthal 1XR 4-Arm 96BCD Chainring

Renthal 1XR 4-Arm 94BCD Chainring

Shimano SG-S7001 Alfine 8 Speed Internally Geared Hub

Sunrace CSR80 8-Speed Cassette

Sunrace RDM56 LD Rear Derailleur

Sturmey Archer F30 Series Hub

Surly Stainless Steel 5 arm Chainring - 94BCD

Sunrace M60 8-Speed 13-32T Freewheel

Surly Stainless Steel 5 Arm Chainring - 130BCD

Surly Stainless Steel 5 Arm Chainring - 110BCD

Surly Stainless Steel 4 Arm Chainring