CNC machined water bottle cage adapter fixture mounted on Brompton Stem Head tube.

They fit on most tubes of any bike within range (29mm-35mm)

This listing includes two RING CLAMPS base to fit water bottle cage adapter (with two water bottle cage screws)

Note :

• Listing does not include water bottle, cage or cage adapter.
• CNC machined aluminum alloy for firm grips without slipping (versus plastic material).

• Fit tube shape part within grip diameter range.

• Put on cage adapter first before screw on headtube to get accurate ring distance.

• Compatible with Monkii cage QR system (to replace Monkii Clip).