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Jtek DropStop Chain Anti-Drop Guide

£4.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Bottom bracket style mounting and fantastic frame protection

The DropStop is a new type of anti-chain drop device for road and mountain bikes. The DropStop is ideal for full suspension mountain bikes or road bikes with non-round or oversize seat tubes which make it impossible to mount other types or anti-drop devices. The DropStop is mounted and firmly clamped into position using the bicycles bottom bracket. The DropStop totally protects the frame from chain damage due to chain-drop and keeps the chain running on the inner chainring.

- Simple design for both road and mountain bikes
- Hardened aluminium construction with nickel plating
- No seat tube mounting required
- Excellent frame protection

The DropStop is sold in two sizes. The longer size is for road bikes and will protect up to a 39 tooth small chain ring. The shorter size will work with most cross and mountain bikes with small chain rings up to 32 tooth.
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How thick is the spacer section?
27 Jan 2019
I'm assuming this goes in the same place as a bottom bracket spacer. How thick is the spacer section? I want to ensure I maintain my chain-line.
0.9mm thickness of the spacer section.
Many thanks