Headsets and spacers

OVERDRIVE 2
FEATURES: Giant’s most advanced fork steerer-tube technology. Oversized headset bearings (1 1/4-inch top and 1 1/2-inch bottom bearings) and a tapered steerer tube combine for unprecedented steering performance with no additional weight.

B

Offering pro-level features, the 10-speed compatible Tiagra rear derailleur gives high performance at a low price
Wide link design increases rigidity and service life
Advanced light action for low-friction shifting up or down the block
Alloy body's and

Ultra-lightweight UD carbon spacers.Unique design saves up to 38% on weight compared to ordinary carbon spacers. Set of 4 spacers: 5, 10, 15, 20 mm.Diameter: 1.1/8".

 To fit 28.6 (1 1/8) steerer & stems

 Silver and black versions

Ultegra Shadow design rear derailleur with wide link design gives quick accurate shifts and excellent drivetrain efficiency
Sleek appearance with Low profile Shadow design construction reduces risk of damage in a crash
Wide outer link plates increase pi

Ultra-lightweight aluminum spacers.
Unique design saves up to 38% on weight compared to ordinary aluminum spacers.
Set of 4 spacers: 5, 10, 15, 20 mm.
Diameter: 1.1/8?.
Set weight: 20g.

Expander clamping mechanism equally divides forces.Expander type for safe and easy assembly.40 mm plug for extra grip. For forks with 1.1/8" carbon and aluminum steering tubes.Weight (gr): 58

Expander clamping mechanism equally divides forces.Expander type for safe and easy assembly.40 mm plug for extra grip. For forks with 1.1/8" carbon and aluminum steering tubes.Weight (gr): 58.