
MARKSMAN33
for SYM Scooters

RACINGBROS
F33 SEAL
EKONOL ®
DOUBLE BUSHING
SYSTEM
- Improve smoothness
- Ensure bearing concentricity
- Minimize clearance
- Extend lifespan
- Enhance rigidity
FERRITIC NITROCARBURIZING
Cyclic Corrosion Test - 200 HOURS
PRECISION FORGED PERFECTION
3D MORTISE FLANGED SLEEVE BEARINGS
Engineered for extreme performance, our motorcycle suspension components feature the MIL-STD-171F Military Standard finish — trusted by the U.S. military for durability, corrosion resistance, and uncompromising quality. Built to endure. Designed to outperform.
Ⓐ OEM COMPONENTS
No specialized mechanical structure; only two machined surfaces are mated together.
Ⓑ MARKSMAN 3D MORTISE-AND-TENON STRUCTURE
Enhances locking performance and significantly improves structural strength and reliability.


DOUBLE BUSHING SYSTEM
The left image shows a typical OEM product, which uses only a single bearing. The structural strength is not suitable for aggressive riding. The right image shows RACINGBROS front forks featuring a DOUBLE BUSHING SYSTEM, delivering greater stability and durability—ensuring safety during high-performance motorcycle riding.
Precision-machined from aerospace-grade aluminum alloy and anodized for durability.
Available in three color options:
Ⓐ Shadow Silver
Ⓑ Midnight Black
Ⓒ Tai Chi Edition

FEATURES / SPECS
◦ F33 seal
◦ Ferritic Nitrocarburizing
◦ Scepter system applied
◦ 15 mm adjustable preload
◦ 200-Hour cyclic corrosion test
◦ EKONOL double bushing system
◦ Designed for stock braking calipers
◦ 3D mortise flanged sleeve bearings
◦ MIL-STD-171F military standard compliant
◦ Speed Adaptive Valving
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Adjustment Range:
Preload: 15 mm
Rebound: 28 clicks ±2
Compression: 28 clicks ±2
Total length: 465 mm
Stanchion diameter: 31 mm
※ Settings may vary. Refer to actual product.
DIMENSION DRAWING
