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Note:   General Fixed sprocket check:Road / Gravel / Touring Bikes
for correct fixed use, the fixed sprocket should NEVER move on the hub when pedal force is applied in both directions.
i.e. if the sprocket moves, then something is wrong.
Continued use with a fixed cog that moves will result in damage to the hub.Hybrid / City Bikes

Specifications

Mountain Bikes

• External Rim Width: Electric Bikes19.5mm
Kids Bikes
• Spokes:  ED coated Black plain gauge stainless spokesFrames
• Nipples:  ED coated black brass nipplesShop by Brand
Gloria
• Rim Depth:  24.5mmTrek
• AmflowInternal Width:  14mm Yeti
• Front Hub Spacing: Ridgeback100mm
Brother
• Rear spacing:  120mmGenesis