Full Speed Ahead NO.55R/57-A Headset
Best durable upgrade for cyclists seeking smooth and reliable steering performance.
A robust, reliable headset solution designed for frames with 62mm head tubes. It offers smooth, consistent steering performance through high-quality angular contact bearings, making it a dependable choice for demanding mountain bike setups.
$117.00
Who it's for
- Cyclists looking to install older or straight-steerer forks on modern frames
- Mountain bikers needing reliable steering performance in harsh trail conditions
- Performance-oriented riders seeking a streamlined front-end setup
Who should skip it
- Home mechanics without professional-grade headset press tools
- Weight-conscious racers aiming for the lightest possible hill-climb build
- Owners of frames requiring fully integrated IS-standard headsets
Performance breakdown
Bearing Smoothness
Angular contact bearings deliver exceptionally fluid steering under heavy trail loads.
Corrosion Resistance
Anodized finish effectively shields against moisture and harsh riding conditions.
Installation Compatibility
Standardized ZS56 sizing makes this a straightforward swap for most frames.
Structural Rigidity
Robust construction maintains precise handling during aggressive, high-speed descents.
Long-term Durability
Built to withstand significant abuse without developing unwanted play or creaking.
Aesthetic Integration
Minimalist black finish blends seamlessly with modern mountain bike frame designs.
Key Specs
Headset Type
Semi-Integrated
Frame Standard
ZS (Zero Stack)
Steerer Tube Diameter
1.5 inches
Head Tube Inner Diameter
62 mm
Crown Race Diameter
40 mm
Bearing Type
Angular Contact
Finish Type
Anodized
Intended Use
Mountain Biking
Stem Clamp Diameter
28.6 mm
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