Absolute Black Carbon Hollowcage Oversized Derailleur (Red)
Absolute Black Carbon Hollowcage Oversized Derailleur (Red)
Absolute Black Carbon Hollowcage Oversized Derailleur (Red)
Absolute Black Carbon Hollowcage Oversized Derailleur (Red)

Absolute Black Carbon Hollowcage Oversized Derailleur (Red)

TCRCAGEAXS/BK-XX_Std

Regular priceRs. 44,500
/
Tax included.

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Description

Hollowcage for Shimano 9100 / 8000. Our revolutionary mono-plate OSPW design is the quietest, best shifting, aerodynamic derailleur cage design created to date. It is a dawn of new era for rear derailleurs. Hollowcage OSPW has a carbon-polymer mono-plate construction with bespoke, oversized, full ceramic bearings and the most advanced silencing pulleys ever created.

Feature

WHY IS OUR OSPW HOLLOWCAGE SO SPECIAL?

  • It is super silent (over 12dB noise reduction vs stock).

  • The shifting is as good as with the original Dura Ace cage.

  • It’s more aero than the OEM cage and other oversized cages.

  • It saves more watts than other cages

  • One of the lightest oversized cages on the market.

  • First mono plate construction of its kind.

THE NEW ERA OF SILENT PULLEYS. MEET THE SILENT XRING PULLEY 

Does it bother you when you ride in a really quiet scenery but you can still hear your bike’s chain engaging the pulleys? This familiar clunking noise has been accompanying us on every ride for decades. It’s time for a change.

FLEXIBLE OSPW CAGE IS BETTER THAN A STIFF ONE.

Contrary to common knowledge, flexibility is good as it allows the cage (and therefore lower pulley) align better with the angle of the chain when using the higher gears of the cassette. This means less friction (and less Watts lost) as the pulley doesn’t have to fight against the chain itself. Shimano has partially solved this issue by bending the lower part of the cage slightly outwards, to align better with the chain when using top of the cassette range. We have taken a different approach and eliminated one part of the cage all together, creating mono plate cage that can dynamically adapt to the chain angle.

STIFFER GUIDE PULLEY, NOT CAGE, MEANS BETTER SHIFTING

Many companies try to convey that a stiffer cage is a better shifting cage. But the single most important factor that impacts the shifting is the upper pulley itself. Since the upper pulley is mounted directly to the rotating pivot axle, the flexibility of the cage plays very little role. It’s the upper pulley that moves the chain left and right enabling gear change, so making the upper pulley really stiff allows for greater shifting precision. Most oversized pulley cage systems use very small bearings, with a lot of lateral play at the teeth which in turn provide poor, sloppy shifting. 

THE PROBLEM OF SHALLOW TEETH

One of the main shifting issues, apart from pulley stiffness alone, stems directly from the low teeth profiles. Low teeth simply can’t move the chain effectively left or right when you change gear. They are the only points of contact with the chain, but for some bizarre reason, majority of oversized pulley systems come with very shallow teeth profiles. This is the major contributing factor to oversized pulley cages shifting badly.

OVERSIZED OSPW CAGE IS ACTUALLY MORE AERO

There is a general belief among some of the riders that oversized cages are less aerodynamic. Their larger surface area, when compared to OEM cages, must result in some power losses, which would offset the gains generated by the bigger pulleys. We have tested the market leading cage as well as original Dura-Ace cage in a bespoke wind tunnel, designed for smaller objects. HOLLOWcage proved to be more aerodynamic than the OEM (DA cage) as well as the other leading brand.


 

We love happy customers. Our 7-day Easy Returns Policy is a basic structure to support you effectively. If you need any further assistance, just reach out and we're happy to help.

To be eligible for a Return, please make sure of the following
- Products must be unused, unwashed and in re-sellable condition
- Products must be in their original condition with all original tags, manuals, and packaging intact
- Packaging should not be broken, opened or tampered with
- You need to have a receipt or proof of purchase
- All promotional items shipped along with the purchased item must be returned

The following product categories cannot be Returned or Exchanged - Bicycles, Trainers, Wheels, Rims, Floor Pumps, Frame-set, Forks/Suspensions, Work Stands, Car Racks, Socks, Masks, Nutrition items and Sunglasses.

Equivalent store credit will be issued in case we're unable to source the agreed upon exchange/replacement. The store credit can be used to purchase other products online at bumsonthesaddle.com

Do check our detailed Returns & Exchanges Policy for more information.

If you need any further assistance, just reach out and we're happy to help.

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