Do you want to squeeze every last watt out of your bike?
The Rose Big Wheels CNC ceramic jockey wheels offer a smooth-running and durable way to optimise the efficiency of your drivetrain. Precisely machined from high-quality aluminium and equipped with sealed hybrid ceramic bearings, they ensure minimal friction, whilst the larger wheels reduce the bending radius of the chain.
Details:
• CNC-milled precision pulley wheels made of aluminium
• Ideal for 9- to 13-speed rear derailleurs (chain size 1/2″ x 11/128″)
• Sealed ceramic hybrid ball bearings
• Aerodynamic aluminium dust caps
• Weight-optimised pulley body
• Smooth-running, very robust and wear-resistant
Technical details:
• Material: aluminium AL7075-T6 (pulley), AL 6061-T6 (caps)
• Hub width: 8.5 mm for M5 screw connection
• Weight: approx. 11 g each (11 teeth), 12 g (12 / 13 teeth), 13 g (14 teeth), 15 g (15 teeth)
• Contents: 2 pieces (guide and tension pulley)
Compatibility:
• 11 teeth = SHIMANO 9-, 10- and 11-speed (Road & MTB), SRAM Road 2x11-speed
• 12 teeth = SRAM Road & MTB 2x10- and 2 or 1x11-speed (SRAM Apex, Rival, Force, XX1, X01, X1, GX, NX, X01, XX, X0, X9, X7, X5)
• 13 teeth = SHIMANO 1x12-speed Gravel & MTB (GRX RD-RX827 / RX822, XTR RD-M9250, Deore XT RD-M8250, SLX RD-M7120, Deore RD-M7200 / M6250
• 14 teeth / 15 teeth = upgrade option e.g. for SRAM Eagle and SHIMANO 12-speed (MTB)
In the box:
• 2 Rose Big Wheels CNC ceramic jockey wheels
Note:
When using jockey wheels with more teeth than the standard version (e.g. 14 teeth or 15 teeth), ensure there is sufficient clearance in the rear derailleur cage. Before installation, check the distance from the centre of the mounting bolt to the inner edge of the cage housing: For jockey wheels with 14 teeth, a minimum remaining distance of approx. 30 mm is required; for 15 teeth, at least 32 mm. When upgrading to larger jockey wheels, it may also be necessary to adjust the chain length.
Fabrikant: Rose Bikes GmbH, Schersweide 4, 46395 Bocholt, Germany, www.rosebikes.de
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