The Shimano Nexus SG-C7000-5D is a purpose-built 5-speed internally geared rear hub designed specifically for e-bikes with mid-drive motors. Engineered to handle the higher pedalling forces generated by e-bike systems, it delivers smooth, reliable shifting across a 263% gear range — making it an ideal drivetrain choice for city commuters, cargo bikes, and everyday electric riders who want low maintenance and all-weather dependability.

Highlights

• E-bike dedicated design: Built to withstand the higher torque loads produced by mid-drive motors, offering greater strength and durability than standard Nexus hubs.
• 5-speed internal gearing: Provides a 263% total gear range — shift at any cadence, even when stationary, with no exposed derailleurs to maintain.
• Centre Lock disc brake mount: Compatible with Shimano Centre Lock rotors; spline-mount system makes rotor installation and removal quick and precise.
• 36-hole lacing: Greater spoke count provides a stronger, more durable wheel build suited to the additional loads of e-bike use.
• Sealed internals: Fully enclosed gear mechanism protects against rain, mud, and dust — ideal for year-round commuting with minimal servicing.
• Aluminium hub shell: Lightweight yet robust construction balances durability with overall wheel weight.

E-Bike Engineering

Unlike standard Nexus hubs, the SG-C7000-5D is engineered from the ground up for e-bike applications. The internal components are reinforced to handle the sustained higher torque delivered by mid-ship motors such as those in the Shimano STEPS E6100 and E5000 series. Shifting performance is also optimised for e-bike cadences, ensuring crisp, reliable gear changes even under load.

Internal Gearing Advantages

An internally geared hub keeps all moving parts sealed inside the hub shell, eliminating the need for derailleur adjustment and greatly reducing maintenance intervals. Gears can be changed while stationary — particularly useful in stop-start urban traffic — and the system remains reliable across all weather conditions without the chain-drop risk of derailleur drivetrains.

Compatibility & Fit

5-speed internal geared hub. Rear axle spacing (OLDimension): 135mm. Axle length: 187mm. Axle type: 10mm bolt-on (nut type). Spoke holes: 36H (J-bend). Brake mount: Centre Lock disc. Compatible shifter: Shimano SL-C7000 Nexus 5-speed revo-shift lever. Hub shell: aluminium. Note: small parts (axle nuts, cone nuts, cog, cog lockring) are not included — source separately to complete the wheel build.