What is a belt drive?

A belt drive consists of a toothed belt made of carbon fiber-reinforced plastic. Instead of an oil-lubricated metal chain, the belt runs dry over gears on the crank and rear wheel. Belt drives originally became popular in motorcycles – today they are becoming increasingly popular, especially in e-bikes and urban bicycles.

What is a chain drive?

The classic chain drive uses a metal chain that runs over a front chainring and a rear sprocket. When combined with a derailleur or hub gear, the gear ratio can be adjusted—ideal for hilly terrain, touring, and sporty riding.

The most important differences at a glance

Advantages of belt drive on e-bikes

• ✅ Low maintenance: No oil, no dirt, no rust. Ideal for commuters and frequent drivers.

• ✅ Durable: A well-maintained strap will easily last twice to three times as long as a chain.

• ✅ Clean: No lubricating oil – so no greasy trouser legs or dirty hands.

• ✅ Quiet: Almost silent riding, especially comfortable in city traffic or when cycling for pleasure.

Disadvantages of belt drive

• ❌ Can only be combined with hub gears: Sporty derailleur gears like those found on mountain bikes are not compatible.

• ❌ Frame must be able to be opened: A special belt outlet on the rear triangle is necessary - not every frame is suitable.

• ❌ More expensive: Belt drive systems and compatible components cost more.

• ❌ Less flexible in gear ratios: Adjustment is more difficult than with a chain drive with cassette.

Advantages of the chain drive on e-bikes

• ✅ Flexibility: Wide range of gear ratios – perfect for steep climbs and sporty riding.

• ✅ Proven technology: Spare parts are available worldwide and easily accessible everywhere.

• ✅ Compatible with any type of gear system: hub gears, derailleur gears, even automatic gears.

• ✅ Cheaper to buy: Especially attractive for beginners.

Disadvantages of the chain drive

• ❌ Higher maintenance requirements: Regular oiling and cleaning required.

• ❌ Susceptible to rust and wear: Especially in wet, muddy and salty winter roads.

• ❌ Louder: Especially when the chain is worn or the gears are inaccurate.

Which drive is suitable for whom?

• City riders and commuters: The belt drive is ideal here – quiet, low-maintenance, clean.

• Touring cyclists and touring cyclists: Belt drive is also suitable for long distances – provided it is not too sporty.

• Sporty E-MTB riders: Clear recommendation for the classic chain drive with derailleur gears – more flexibility and resilience off-road.

• Occasional riders: If you don't use your bike every day and want to invest less in technology, a chain drive is cheaper.

Conclusion: Belt drive or chain drive – which is better?

There's no "better" — just the right system for your needs. Anyone looking for a reliable, clean, and virtually maintenance-free e-bike for city or everyday riding will love the belt drive. However, anyone who rides sportily or needs maximum gear range is better off with a traditional chain drive.

👉 Tip: If you want to experience the convenience of a belt drive, make sure you buy a high-quality hub gear. Combined with a mid-drive motor (e.g., Bosch or Shimano), this results in a truly premium riding experience.