Beschreibung
The influence of the chainring on the function of the derailleur gears is often underestimated. To maintain original Shimano shifting performance,
Shimano cranksets should only be fitted with the original Shimano chainrings. Only these chainrings are specifically designed to...,
to work perfectly together and as a system with the matching Shimano chain. This is achieved through functional features such as special tooth profiles, ramps, and
With the climbing aids, they achieve a consistently precise, clean shifting function at the front.
Hyperdrive:
Shimano's front shifting system is based on the HyperDrive-
Concept. Front derailleur, HG chain and SG-X chainrings work together in the
coordinated system and make shifting at the front more reliable,
faster and more accurate.
Without HyperDrive, problems quickly arise, especially under load.,
when shifting from the middle to the large chainring
Shimano's HyperDrive system eliminates these problems.
The guide teeth, the shifting aids of the SG-X chainrings,
the super-stiff wide-link derailleurs and the special profile of the
HyperGlide chain plates were designed to be perfect
as a system, acting together and thus ensuring clean, trouble-free operation.
Switching is necessary.
The chainrings exhibit exceptionally high torsional strength.
The profile of the teeth is specifically shaped so that when shifting gears
The chain can slide in both directions and be cleanly picked up.
becomes.
Hollowglide:
Hollow outer chainring.
The highly stable hollow construction reduces the weight,
without losing strength. Improved power transmission.
and faster, more precise chainring changes are the result
Result.
The Shimano SM-CRM81 chainrings for the XT M8000 1×11 crankset
The new 1x11 chainrings for XTR and Deore were further developed based on intensive testing with world-class cross-country and trail riders. The tests covered every conceivable situation, from the dusty conditions of America and Southern Europe to the heavy mud and slush of the Nordic winter.
Efficient chain guidance with Dynamic Chain Engagement
Even more efficient chain guidance was the stated goal for the development of the new chainrings for the DEORE XT (SM-CRM81). This goal is achieved through the so-called Dynamic Chain Engagement. The redesigned tooth profiles of the CRM81 chainrings are shaped to provide optimal chain retention and guidance on the chainring, while simultaneously reducing drivetrain noise and minimizing wear. Coated steel teeth on the DEORE XT guarantee maximum durability.
Highlights of the Shimano SM-CRM81 chainrings
- Bolt circle: 96 mm
- Number of holes: 4
- Rear gears: 11-speed
- Material: Steel/Carbon fiber reinforced plastic
- Teeth: 30 / 32 / 34 (see item description for design)
Scope of delivery
- 1x Shimano SM-CRM81 chainring for XT FC-M8000-1 (version see item title)
| brand | Shimano |
|---|---|
| EAN | 4524667393238 |
| Myeloproliferative Neoplasm | ISMCRM81A0 |
| execution | single |
| fastening | 4-hole, 96 mm bolt circle (rectangular) |
| E-bike approval | No |
| Area of application | All Mountain |
| Number of gears | 11-fold |
| bolt circle | Direct Mount |
| material | aluminum |
| Mounting system | Direct Mount |
| Number of teeth | 30 |
