The Park Tool BSH-4 is the bladed spoke holder that keeps flat aero spokes still while you adjust their tension. It stops the spoke from twisting or binding as you turn the nipple, a key step when truing and building wheels with bladed spokes.
An aero spoke that twists during tensioning loses strength and, as it rotates, defeats the aerodynamic profile it was chosen for. The BSH-4 solves the problem with a lightweight, ergonomic body featuring four slots of different widths: choose the one that fits the spoke blade, slip it onto the spoke and keep it aligned while you work the nipple with the spoke wrench.
Where to use the BSH-4 spoke holder
- Truing wheels with flat or aero spokes.
- Tensioning during the build of new wheels with bladed spokes.
- Replacing an aero spoke and bringing it up to tension.
- Checking spoke orientation after adjustment.
Why choose Park Tool BSH-4
- Four different-size slots for a wide range of bladed spokes.
- Accepts flat spokes from 0.8 mm to 2.0 mm in width.
- Prevents spoke twist, preserving strength and aerodynamics.
- Lightweight, ergonomic design, comfortable in the hand for long sessions.
For anyone building or truing deep-section wheels, the Park Tool BSH-4 bladed spoke holder is the natural partner of the spoke wrench: you work precisely and the spokes stay straight, exactly as they should.
TECHNICAL SPECIFICATIONS
General
- Code: BSH-4
- Type: holder for flat/aero spokes
- Slots: 4, different sizes
- Design: lightweight and ergonomic
Compatibility
- Spokes: flat (bladed) spokes from 0.8 mm to 2.0 mm wide
The Park Tool BSH-4 is the bladed spoke holder that keeps flat aero spokes still while you adjust their tension. It stops the spoke from twisting or binding as you turn the nipple, a key step when truing and building wheels with bladed spokes.
An aero spoke that twists during tensioning loses strength and, as it rotates, defeats the aerodynamic profile it was chosen for. The BSH-4 solves the problem with a lightweight, ergonomic body featuring four slots of different widths: choose the one that fits the spoke blade, slip it onto the spoke and keep it aligned while you work the nipple with the spoke wrench.
Where to use the BSH-4 spoke holder
- Truing wheels with flat or aero spokes.
- Tensioning during the build of new wheels with bladed spokes.
- Replacing an aero spoke and bringing it up to tension.
- Checking spoke orientation after adjustment.
Why choose Park Tool BSH-4
- Four different-size slots for a wide range of bladed spokes.
- Accepts flat spokes from 0.8 mm to 2.0 mm in width.
- Prevents spoke twist, preserving strength and aerodynamics.
- Lightweight, ergonomic design, comfortable in the hand for long sessions.
For anyone building or truing deep-section wheels, the Park Tool BSH-4 bladed spoke holder is the natural partner of the spoke wrench: you work precisely and the spokes stay straight, exactly as they should.
TECHNICAL SPECIFICATIONS
General
- Code: BSH-4
- Type: holder for flat/aero spokes
- Slots: 4, different sizes
- Design: lightweight and ergonomic
Compatibility
- Spokes: flat (bladed) spokes from 0.8 mm to 2.0 mm wide
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