This front belt drive sprocket from Gates' CDX:EXP Expedition series is designed for touring and off-road use and is made from 7075 aluminium to be extra durable and hard-wearing. It has four arms and a bolt circle diameter of 104 mm.

Specifications:

Application:

City & Touring, Cross Country

Teeth:

39 T, 46 T, 50 T, 55 T

Mount:

104 mm bolt circle diameter, 4-arm

Technical Information:

Width of the teeth:

11 mm

Tooth division:

11 mm

Mounting web thickness:

3.1 mm

Offset:

3.1 mm (assembly surface), 1.55 mm (centre line)

Inner Diameter:

88 mm

Arm width:

19 mm

Material:

aluminium (7075-T6)

Features:

• CDX:EX level: high-end version for high loads and best performance plus 25% additional wear surface
• made of aluminium for increased durability and hard-wearingness
• suitable for mud, sand, snow and ice as well as all roads
• middle guide groove (CenterTrack)
• for low-maintenance journeys across extreme distances on almost any terrain
• black anodised

Technology:

Gates Carbon Drive System
The main advantages of the Gates Carbon Drive system are cleanliness, smoothness and robustness. Urban commuters as well as mountain bikers, E-bike users or leisure riders benefit from the high mileage. Oil-stained or rusty chains are a thing of the past.
Clean: No lubricant means no accumulation of grease and dirt.
Smooth and silent operation: no metal-to-metal contact of the chains.
Light: The whole system weighs less than a standard bicycle chain.
No elongation: Belt does not need to be re-tensioned or replaced.
Self-cleaning: CenterTrack and MudPort profiles are specially designed to repel mud, dirt, snow or other contaminants.
Consistent efficiency: The drive boasts a long service life compared to that of a conventional chain, where efficiency is significantly reduced by wear or dirt.
Installing a Gates Carbon Drive Belt Drive requires a specially-made frame, therefore we strongly advise against using one to modify a conventional framework.

Models:

39 tooth:

Outer Diameter:

134.8 mm

Manufacturer Number:

CT11394BA

46 tooth:

Outer Diameter:

159.3 mm

Manufacturer Number:

CT11464BA

50 tooth:

Outer Diameter:

173.2 mm

Manufacturer Number:

CCT11504BA

55 tooth:

Outer Diameter:

190.7 mm

Manufacturer Number:

CT11554BA

Contents:

• 1 x Gates CDX:EXP 4-Arm Front Belt Drive Sprocket
• 1 x washer 35 x 41 x 1 mm
• 2 x washer 35 x 41 x 0.5 mm
• 8 x washer 10 x 16 x 1 mm
• 4 x washer 10 x 16 x 0.5 mm