This chain guide is 2 way adjustable vertically and horizontally. 

Vertical adjustment are made my loosening and tightening the bolt beside the "Strummer" Logo. Approximate maximum vertical adjustment is 25 mm.

Horizontal (closer or further from the bike) adjustment can be made by adding/removing spacer behind the plastic part. We provide 4 pieces spacer (each approximately 1 mm thick). Maximum 4 mm adjustment can be made.

Specifications

Material: Aluminum Alloy

Maximum Chainring Size: 40T

Round Hole Size (to Insert Bottom Bracket): 34.5 mm