Introduction

Our new generation of shaft drive uses bevel gears made of heat treated cromoly, paired with high quality sealed cartridge bearings coupled to a steel shaft rod – all sealed inside a lightweight, durable alloy housing. Our patended design delivers a smooth, consistent power transfer from the pedals the to rear wheel, while giving the bike a sleek, modern look.
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We have also developed specialized components to integrate the shaft drive with Shimano's advanced 7-speed and 8-speed internally geared hubs. By combining our SDS with the Shimano hubs, our bikes deliver a uniquely smooth ride, high performance and low maintenance.

Features

There are many advantages of shaft drive bicycles versus chain bicycles.

Easier to operate: Simple twist grip shift is convenient, responsive and operates independent of pedaling so you can shift gears anytime, even at a complete stop.

Safer: No chain to fall off; no chain bite on clothing.

Cleaner: Axles and gears are fully enclosed - no grease/oil exposure to get on hands or clothing.

Lower maintenance: Fully enclosed, durable bevel gears are protected from impacts, debris and the elements.

Smoother ride: Fluid shifting and mesh gearing combine to create smoother pedaling and shifting.

Easier to transport: Easy loading and unloading without getting chain grease on hands and clothes.

Lower cost of ownership: Increased durability and drastically decreased maintenance schedule means fewer service and repair costs.

Application

Bike Share Hybrid Bike
Road Bike Folding Bike

Series

The Shaft Drive System (SDS) can be ordered in a variety of finishes, lengths and gear ratios -- making it easy to configure bicycles for a wide variety of bike models, riding styles, terrain and aesthetic looks.

SDS Specifications
Name SD8-PD SD8-RU
BB Type Square Taper
Splined		 Square Taper
Splined
Gear Ratios 1.85, 2.07, 2.38 1.85, 2.07, 2.38
Shaft Lengths 390mm-460mm 390mm-460mm
Color Silver/Black Silver/Black
Compatibility Shimano Nexus/Alfine 3/7/8-Speed Shimano Nexus/Alfine 3/7/8-Speed
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How to Order

If you would like a quotation on ordering the Shaft Drive System or would like assistance developing a shaft drive bicycle for your market, please call + 86 512 8889 8901, or send an email to m.huang@g-d-m.cn.