New Shimano XTR hubs, pedals, and more

Hubs use Micro-Spline freehub tech with new Scylence system

Components News Pedals
New Shimano XTR Hub

The new Micro-Spline freehub body features smaller splines that allow for use of a 10-tooth cog on Shimano’s new 12-speed cassettes.

To complement its new 12-speed XTR drivetrain that’s detailed in great length here, and brakes that you can read about here, Shimano has launched a host of new hubs (both XTR and non-series), plus new XTR-level pedals, a slick dropper post remote, and a new chain keeper. Here’s a rundown on each. New XTR M9100 series components will be available in fall 2018.

New Shimano Dropper Remote

The new dropper remote is claimed to have a lighter, more natural feel.

With the SL-MT800-IL Shimano introduces its first seatpost dropper remote, which features significant attention to ergonomics. The new remote, which is only compatible with XTR brakes, enables quick adjustment with a lighter and more natural feel, and is compatible with most dropper posts on the market since the cable clamps at the lever end. The dropper remote can be installed in the same position as a left shift lever using Shimano’s I-SPEC EV system design and offers 7mm of cable stroke. Price is $60.

New Shimano Chain Keeper

This guide allows for easy height adjustment as well as chain line adjustments.

For racers and riders seeking single front chainring insurance, Shimano has rolled out its lightweight and adjustable SM-CD800 chain guide. This guide allows for easy height adjustment as well as chain line adjustments by loosening a single bolt and turning a thumb screw. Subsequent tightening of the bolt locks both adjustments at the same time. The chain guide is available in three mounting types: Direct, E, and ISCGO5. Price is $50.

New Shimano XTR Pedal

These new XC-oriented XTR pedals come in two axle length options, 52mm and 55mm.

Shimano also has unveiled two new XTR-level pedal options, starting with the PD-M9100 ($180). These XC-oriented crank turners are claimed to improve rider stability with wider edge-to-edge contact area while improving mud shedding through more rounded contact points and off-set bindings. Shimano’s Rider-Tuned design offers two axle length options (52mm and 55mm). The shorter axle length minimizes Q-factor for XC riders who are running boost drivetrains. This new shorter axle also matches the Q-factor of Shimano’s SPD-SL road pedals, providing a smooth transition for road riders diving into gravel. Claimed weight is 310g (52mm) or 314g (55mm).

New Shimano XTR Pedal

The new trail ready XTR pedals have a wider contact area.

Also selling for $180 are the PD-M9120 XTR trail pedals, which feature a wider contact area, improving stability, while an expanded rearward shoe-pedal contact area better accommodates sneaker-style flat outsoles used in enduro and gravity riding. The Rider Tuned 1mm cleat spacer creates a better interface with shoes of varying outsole design and lug height. Claimed weight is 398g.

Finally, Shimano has rolled out new XTR and non-series MTB hubs, which of course all use the new Micro-Spline freehub technology. As the name suggests, Micro-Spline features smaller freehub splines that allows for use of a 10-tooth cog of Shimano’s new 12-speed cassettes. This helps eliminate damage/gouging to the lightweight aluminum freehub body.

New Shimano XTR Hub

The Micro-Spline hubs also utilize what Shimano calls its Scylence system, which delivers 7.6 degrees of engagement for a very direct pedaling feel along with a silent coasting function.

“You really need to experience it to truly understand,” explained Nick Murdick, Shimano’s North American MTB product manager, who gave the key presentation at the initial XTR press launch at company world HQ in Osaka, Japan, an event attended by Mtbr and small group of other North American mountain bike media. “You can hear how much traction your tires have and it dispels the notion that a loud buzzing noise equals high performance.”

The new freehub body is constructed of two driver plates that completely disengage when you stop pedaling, thus eliminating any freehub ratchet sounds while coasting. Shimano will offer a variety of hub options, including XTR-level straight pull, as well as more affordable non-series hubs that also includes a straight pull option. Here’s a rundown.

New Shimano XTR Hub

HB-M9110/-B and FH-M9110/-B – XTR hubs
  • Boost and Non-Boost options
  • 28 or 32 hole options
  • Compatible with 12-speed and 11-speed M9100 cassettes
  • O.L.D. – 100 mm (HB-M9110), 110 mm (HB-M9110-B)
  • O.L.D. – 142 mm (FH-M9110), 148 mm (FH-M9110-B)
  • Price: $330
  • Claimed weight: 321g boost and non-boost
  • Front hub: $180 | Weight: 134g or 138g
HB-M9110-BS and FH-M9110-BS – Straight pull XTR level hubs
  • Boost only
  • 3-cross spoke pattern only
  • Compatible with 12-speed and 11-speed M9100 cassettes
  • O.L.D. – 110 mm (HB-M9110-BS)
  • O.L.D. – 148 mm (FH-M9110-BS)
  • Price: $340
  • Claimed weight: 235g
  • Front hub: $190 | Weight: 151g

New Shimano Hub

HB-MT900-B and FH-MT900-B – Non-XTR series hubs
  • Boost only
  • 28 or 32 hole options
  • Compatible with 12-speed and 11-speed M9100 cassettes
  • O.L.D. – 110 mm (HB-MT9110-BS)
  • O.L.D. – 148 mm (FH-M9110-BS)
  • Price: $185 | Weight not provided
  • Front hub: $68 | Weight not provided
HB-MT900-BS and FH-MT900-BS – Non-XTR series hubs for straight pull
  • Boost only
  • 3-cross spoke pattern only
  • 28 only
  • Compatible with 12-speed and 11-speed M9100 cassettes
  • O.L.D. – 110 mm (HB-MT9110-BS)
  • O.L.D. – 148 mm (FH-M9110-BS)
  • Price: $200 | Weight not provided
  • Front hub: $80 | Weight not provided
Wide Flange Rear Hub

With FH-M9125-B, Shimano offers a wide flange rear hub option that provides improved durability through more balanced spoke tension and more rigidity with wider spoke bracing. The wide flange also reduces weight of the drivetrain as it was designed specifically for use with the new lightweight 11-speed XTR cassette.

  • Drive-side flange moved 4.7mm outboard
  • Micro-Spline technology
  • Scylence technology
  • Center Lock technology
  • Boost only
  • 28 or 32 hole options
  • Compatible only with CS-M9100 -11 cassette
  • Price: $330
  • Claimed weight: 228g
New Shimano XTR

The entire new Shimano XTR group.

While the press launch in Japan attended by Mtbr did not include any testing time, Shimano is coming to Mtbr’s Colorado headquarters in Crested Butte in mid-June, when the North American MTB press will get their first opportunity to experience the new XTR group. Stay tuned for our first ride review soon after.

Until then, head to www.ridextr.com for more info on all these new components.


About the author: Jason Sumner

An avid cyclist, Jason Sumner has been writing about two-wheeled pursuits of all kinds since 1999. He’s covered the Tour de France, the Olympics, and dozens of other international cycling events. He also likes to throw himself into the fray, penning first-person accounts of cycling adventures all over the globe. Sumner, who joined the Mtbr staff in 2013, has also done extensive gear testing and is the author of the cycling guide book "75 Classic Rides: Colorado." When not writing or riding, the native Coloradoan can be found enjoying life with his wife Lisa and daughter Cora in and around their home in the MTB Mecca of Crested Butte.


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