SPIREX
SPIREX OSPW derailleur pulley cage for SHIMANO 105 11/12S
SPIREX OSPW derailleur pulley cage for SHIMANO 105 11/12S
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Spirex Bike Oversized Pulley Derailleur Cage
Compatible with the following groupsets:
105
• 7150 / 7170 – 12-speed – Max cassette: 36T
• 7000 / 7020 – 11-speed – Max cassette: 32T
Ultra-Lightweight at 75g
• Engineered with an optimized structural design, delivering improved lateral stiffness while weighing less than competing products
Precision Engineering
• Inner and outer cage plates, as well as pulley wheels, are machined from 6061-T6 aluminum
• Blade-inspired surface detailing, polished for a striking metallic finish
Enhanced Drivetrain Efficiency
• 13T + 17T pulley combination ensures smoother chain movement
• Reduces chain deflection angle compared to stock pulleys, minimizing friction and power loss
• Hybrid ceramic bearings offer lower rolling resistance for more efficient power transfer
• Japanese NSK bearing grease provides durability, quiet operation, and long-term performance
• Standard titanium pulley bolts add strength without excess weight
• Built with a titanium pivot axle
Built to Last
• Exceptional efficiency and durability, backed by a 2-year warranty for peace of mind
Customizable Color Options
• Cage Plates: Black / Silver
• Pulleys: Black / Silver / Red / Blue / Gold /Fuchsia/ Purple / Orange
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