Shuriken Oversized pulley System
We all know that rear derailleur is the key component which differentiates drivetrain performance the most, and can be the difference between a new best or disappointment. The Token Shuriken Oversized Pulley is designed to break geometry norms in favor of a new era in drivetrain efficiency. It's even lighter than a stock long cage with plastic pulleys, sound interesting?
Why Oversized?
The Shuriken oversized pulley system improves the drivetrain efficiency regardless of speed, power, and riding condition by lessening chain articulation and therefore friction. In short, the oversized pulley wheels lessen the amount the chain moves laterally. It also dramatically improves the shifting precision and durability, thanks to the oversized wheels spinning slower.
Conti-Wave technology purpose-specific tooth profile that can be found on all Shuriken pulleys. The TBT ceramic bearing in the faster spinning top pulley adds smoothness to where really matters.
Common questions
The Shuriken pulley system can be installed by an experienced mechanic. Be sure to use high-quality tools – such as the T15 (Torx) tool for Shimano versions.
Although it needs two extra chain links on average, we recommend keeping the original chain length first. Once the pulley is installed try all gears carefully and see if it is needed to add extra chain links or use a completely new chain.
We all know that a bigger pulley has lower drag as it spins slower. However, the top pulley has structural limits. Derailleur design varies – the largest top pulley that each derailleur can accommodate are different, and it’s not worth trade-off shifting performance for that marginal gain. Pulley size is just one of the factors – bearing technology, pulley tooth profile, and surface treatment all matter. All Shuriken models are designed not only for efficiency but also for best shifting performance and easy adjustment.
Chain noise comes from the bottom pulley most of the time as the chain enters it at various angles. The 19T bottom pulley of Shuriken is designed for super-smooth running and is as quiet as a plastic pulley.
No. With a little adjustment, the Shuriken oversized pulley system shifts perfectly every time.
We recommend disassembling the Shuriken oversized pulley system, opening the seal, and regreasing the bearings every 2,000km. The maintenance interval should be shorter when riding in rainy or muddy conditions frequently.
No. Current Shimano road derailleurs are structurally different from older generations, and the derailleur cage is not interchangeable.
No, Ultegra RX is more MTB-oriented from the design point of view, a lot of parts are different from road models. In fact, the Ultegra RX could be considered "pre-GRX" despite it being named Ultegra.