Campagnolo / Dura-Ace / Ultegra / Shimano GRX / Shimano MTB / SRAM 11

The ultimate upgrade pulley. Guaranteed to last forever against corrosion.

Precision machined Delrin® Derailleur pulleys featuring XD-15 Ceramic-Hybrid, radial bearings for enhanced shifting performance and longevity. Designed and manufactured for performance, these pulleys feature CN (tight clearance) bearings in the upper pulley to maximize shifting accuracy and C4 (loose clearance) bearings in the lower pulley to allow for chain-line movement.

500 AF Delrin® pulley material features a high mechanical tensile strength and rigidity, natural lubricity, high resistance to moisture, caustic chemicals and UV makes these pulleys highly durable, rigid and very smooth. Delrin also machines very cleanly and precisely. The inherent lubricative qualities of this Teflon® infused material greatly reduces friction when it interfaces with the bicycle chain. When compared to other pulley materials, 500 AF Delrin® with Teflon®, offers significantly less drag than pulleys machined from aluminium or titanium.

An Enduro Bearings exclusive, our XD-15 Ceramic-Hybrid bearings combine corrosion-proof, cryogenically treated nitrogen steel races with Silicon Nitride Grade 3 ceramic balls in a proprietary process that results in the ultimate high performance bearing setup. The deep-groove design raceways allow for maximum sized Grade 3 Silicon Nitride ceramic balls for for increased contact area and improved performance and longevity. 90% fill Kluber NBU52 grease only runs better and smoother with time and is highly resistant to being washed out. It is engineered to stick to the balls and continually be pulled back into the ball path where it is needed.

The eleven tooth size and profile with 5mm bolt-holes are designed as an upgrade for most 11 speed Campagnolo derailleurs.

Enduro Derailleur Pulleys are available in a number of configurations and performance levels, starting with Ceramic-Hybrid, Black-Oxide treated Zero Ceramic as a step up, and XD-15 Ceramic-Hybrid at the top of the line. All are proudly precision manufactured in the USA.

Campagnolo

BKCJ-0331 - 11 tooth, XD-15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 11 speed Campagnolo Derailleurs (5mm bolt hole).

• Compatibility: Campagnolo 11sp
• Bearing Grade: XD15 Ceramic
• Enduro Part Number: BKCJ-0331

Dura-Ace/Ultegra

BKCJ-0341 - 11 tooth, XD-15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 11 speed Shimano Dura-Ace and Ultegra 11sp.

• Compatibility: Shimano Dura-Ace and Ultegra 11sp
• Bearing Grade: XD15 Ceramic
• Enduro Part Number: BKCJ-0341

Shimano GRX

BKCJ-0351 - 11 tooth, XD-15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 11 speed Shimano GRX.

• Compatibility: Shimano GRX 11sp
• Bearing Grade: XD15 Ceramic
• Enduro Part Number: BKCJ-0351

Shimano MTB

BKCJ-0361 - 11 tooth, XD-15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 12 speed Shimano MTB.

• Compatibility: Shimano MTB 12sp
• Bearing Grade: XD15 Ceramic
• Enduro Part Number: BKCJ-0352

SRAM 11

BKCJ-0311 - 11 tooth, XD-15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 11 speed SRAM derailleurs.

• Compatibility: SRAM 11sp
• Bearing Grade: XD15 Ceramic
• Enduro Part Number: BKCJ-0311

SRAM 9/11 / SRAM XX1

Enduro's XD-15 Jockey wheels are the ultimate drivetrain upgrade for riders seeking maximum efficiency and weight reductions. XD-15 ceramic bearings use grade 3 Cerbec ceramic balls which have tolerances more than 2 times tighter than a standard ABEC 3 bearing. This is high level of tolerance combined with the high precision Delrin jockey wheels is critical in irradiating float and bearing play ensuring an efficient and precise drivetrain.

SRAM 9/11

• High precision Delrin jockey wheels
• Enduro XD-15 Ceramic Bearings
• 5 times the corrosion resistance of 440C stainless steel bearings
• Weight: 14.00g

SRAM XX1

• High precision Delrin jockey wheels
• Enduro XD-15 Ceramic Bearings
• 5 times the corrosion resistance of 440C stainless steel bearings
• Weight: 14.00g