Axiom Trekk Seat Collar
Best mounting solution for cyclists adding racks to frames without eyelets.
A simple, effective solution for adding rack compatibility to bikes lacking frame eyelets. This lightweight collar replaces your existing seat clamp to provide two secure M5 mounting points, making it an essential upgrade for commuters and tourers alike.
$10.99
at
Bike Shop LA
More Trekk options
Who it's for
- Commuters and tourers needing easy rack or fender installation
- Cyclists carrying heavy loads who prioritize seatpost stability
- All-weather riders seeking durable, rust-resistant hardware
Who should skip it
- Weight-conscious cyclists chasing the lightest possible bike build
- Riders who frequently adjust saddle height on the go
- Style-focused cyclists wanting custom colors or unique finishes
Performance breakdown
Installation Simplicity
Bolt-on design makes mounting straightforward for any home mechanic.
Structural Integrity
Aluminum construction provides a rigid, reliable anchor for loaded racks.
Weight Efficiency
Minimalist profile keeps added mass negligible for performance-focused riders.
Compatibility Range
Fixed 34.9mm diameter limits use to specific modern frame standards.
Hardware Durability
Steel bolts resist stripping during frequent adjustments or rack swaps.
Aesthetic Integration
Sleek, unobtrusive finish blends seamlessly with most modern bike frames.
Key Specs
Material
Aluminum
Mounting Position
Seatpost
Clamp Diameter
34.9 mm
Bolt Material
Steel
Bolt Head Type
Allen
Clamp Style
Standard
Clamp Mechanism
Bolt On
Bike Compatibility
Road, Mountain, Hybrid
Frame Material Compatibility
Aluminum, Carbon Fiber, Steel, Titanium
Attachment Points
2 x M5 threaded eyelets
Know before you buy
Still have a question?
Ask Metto anything about the Axiom Trekk Seat Collar before you decide.