A good choice for road and other front-derailleur-equipped bikes using chainrings within the 53–34T range, especially when discreet frame protection matters.
The BBB ChainWatch BCR-80A is a compact chain drop protector that sits on the front derailleur to help keep your chain where it belongs. If the chain tries to move off the inner edge of the chainring, ChainWatch helps hold it away from the frame so you can keep pedalling and reduce the risk of contact damage.
Made from 7075 T6 aluminium, it weighs just 4 g, making it a practical addition without adding noticeable weight. Its almost invisible installation profile keeps the bike looking tidy, while the included bolts and washers make fitting it to various front derailleurs straightforward.
The BCR-80A is compatible with chainrings in the 53–34T range. It is a sensible upgrade for road and other two-chainring bikes where a dropped chain could mark the frame or interrupt a ride.
Chain drop protection
Helps keep the chain on the chainring and away from the frame if it tries to drop.
Broad chainring compatibility
Designed for chainrings within the 53–34T range.
Front derailleur mounting
Installs at the front derailleur for a discreet, integrated position.
Lightweight aluminium construction
7075 T6 aluminium keeps the protector’s weight to just 4 g.
Almost invisible once fitted
The low-profile installation keeps the finished appearance neat and unobtrusive.
Hardware included
Bolts and washers are supplied to suit various front derailleur installations.
General
Materials & construction
Dimensions & weight
Compatibility
Features
What's included
ChainWatch
Keeps the chain on the chainring and away from the frame, helping you continue pedalling if the chain tries to drop.
7075 T6 Aluminium
A lightweight aluminium construction keeps the protector’s weight to 4 g while providing a practical mounting solution at the front derailleur.
Part of your ride
BBB is a Dutch cycling brand established in 1998 by former professional cyclists Chris Koppert and Frank Moons. The brand develops cycling parts and accessories informed by rider feedback, personal cycling experience and prototype testing.
BBB offers more than 1,500 products across 40 categories, with products sold in more than 40 countries. Its range is designed at the company’s headquarters in Leiden, the Netherlands, and the brand has received more than 100 product and innovation awards.
