Core e*spec Chainguides offer a lightweight, durable chain retention solution for Bosch® CX Gen4, Gen5, and Shimano® EP8 motor systems, with 55mm chainlines.

Core e*spec Guides are designed to provide the long-lasting performance of an alloy backplate guide, with a wider 55mm chainline for modern Boost and Super Boost e-bikes. They feature a wider offset to accommodate 2-pc chainrings, which often have clearance issues, and our latest e*spec upper sliders, which provide unprecedented retention while improving ease of setup and maintenance. 

Features
Adjustable upper slider
Durable aluminum backplate
Includes ISCG mounting hardware for 55mm chainline

Specifications
Capacity: Bosch CX Gen4: 32–38T | Bosch CX Gen5: 32–36T | Shimano EP8: 34–38T
Chainline: 55mm Boost & Super Boost
Color: Black
Compatibility: 55mm chainline drivetrains
Features: Adjustable upper slider with removable front plate for simplified setup and maintenance
Included: Chainguide, ISCG bolts x 2
Mount: Bosch CX Gen4, Bosch CX Gen5, Shimano EP8/E8000
Upper Slider: Adjustable

Mfr Claimed Weight
Bosch CX Gen4: 75g
Bosch CX Gen5: 53g
Shimano EP8/E8000: 65g