Rear Road/Gravel/Adventure/CX Disc GRM Wheels  (25mm internal width)

Rear Road/Gravel/Adventure/CX Disc GRM Wheels (25mm internal width)

The GRM is a popular choice for those that want to run bigger tires on their 700c platform bikes. Whether your ride is designed for Road, or Gravel, the GRM's 27.5"/650B size with an internal width of 25mm allows a tire range of 1.6"~2.3" or 40c~60c.

Built the same way we build our mountain wheels, its not afraid of seeing some terrain and air action. Being weight conscious, our rims maximize strength-to-weight by featuring a lean 415g per rim. The GRM is laced with the Shogun hubs, offering high engagement and low maintenance for pure performance and no compromise.


Hand laced in-house with proprietary techniques to ensure no truing or re-tensioning necessary.


The GRM wheels features

  • Hand laced, yielded-stress-relieved in Metro Vancouver, Canada.
  • TAIRIN premium 6069-T6 aged alloy 25mm internally wide rims front / back.
  • Modern rim profile Tubeless compatible with bed lock design + Tire channel for ease of setup.
  • The Shōgun hub set. You can mix and match front and rear sizes.(15x100 | 12x100 | 9x100 (thru-axle QR) front axle with 12x142 | 10x135(thru-axle QR) mm rear axle)

     Thru-Axle QR is compatible with standard quick release vertical dropouts.

  • TORQUE CAPS (For RockShox) available for front hubs 15x110mm and 15x100mm please add them to your order following this link here.
  • Various combinations of Sapim spokes and nipples to tailor to your riding demand.

(For more information about our TAIRIN rims and hub sets, please check product technicals)

This wheelset comes with a set of options for spoke and nipple combinations
D-light / Alloy – This wheelset comes standard with Sapim D-light 2.0-1.6-2.0mm double butted spokes and Sapim alloy nipples. Top performance combination for weight and strength in its spoke value range

Butted spokes are more elastic in its thin section, which migrate stresses on its ends better than straight spokes.
CX-Ray / Alloy - For light and weight conscious riders. Best performance in weight-to-strength ratio. This combination is the lightest but still provides a very solid platform for all terrain riding. The CX-Ray spoke is flat-bladed, well known for its flexibility to migrate stresses from its ends, and its aerodynamic. This combination is 52g lighter per wheel, 104g lighter as a whole set.


Nipples - Sapim Polyax

The new school of alloy nipples by Sapim are superior in durability and strength than traditional brass nipples. We find these modern alloy nipples excellent against corrosion, and less prone to deformation. Not all alloy nipples are made the same, and in this case, we concluded that the modern 7075 alloy Poylax is a much better option, but we still offer brass nipples for those unconvinced; just let us know. All nipples come in black.

Freehub options

Select your drivetrain specific freehub for this wheelset. Options are for traditional Shimano HG, Sram specific XD drive, and the new Shimano Microspline 12sp. Planning to change drivetains in the future? No problem. Freehubs are swappable with minimum effort. We also sell freehubs individually


Brake Fitting options
All wheelsets come with standard 6-bolt brake mount. We are sticking to this ISO standard so that we can offer conversion kits to futureproof any of the hubs across all axle spacing standards.


Decal Colors

Select between standard and premium decals. Click here to view the current color availability chart, and dont forget to fill in your choice in the last comment box. If you choose premium decals, make sure you select the premium option in the drop down menu. Standard decals have no extra cost.

Hand laced wheels

Our wheels are hand laced in Surrey, BC. and we use multiple traditional methods of spoke yielding-stress-relieving, so that when you receive your wheel, you can rest assured that there is no seat in periods, or spokes losing tension in initial rides - these which would require re-tensioning like machine and poorly built wheels.


Premium hand built wheels requiere dedication and take much longer than machine built, but the accuracy and attention to detail produced by the traditional way is one of the key aspects that makes Tairin wheels superior. By choosing Tairin Wheels, rest assured that every wheel has been hand crafted by a master wheel builder, so you get the best quality and labour, at the best deal out there.

We know that purchasing a new wheelset can be overwhelming with all the information at hand. Any questions and inquiry can be addressed by contacting us.

  • Specifications

    Wheel Size 27.5"/650B
    Tire recommendation

    40c~60c - And for 29" tires up to 1.8"

    Tubeless tires, max 100 PSI

    External Rim Width 30mm
    Internal Rim Width 25mm
    Rim Depth 23mm
    Hubs Tairin Shōgun
    Bearings Sealed Cartridge
    Engagement 96 Point, 6-Pawl, 3 Steps/Pawl
    Spokes Sapim D-light or CX-Ray (Black)
    Spoke Nipples Sapim Alloy (Black)
    Spoke Count 32h
    Base Weight 1570g/set
    Recommended Use Gravel, Road, Adventure, Cyclocross, Cross Country.
    Hub Warranty 3 Years
    Rim Warranty 3 Years
    Rim Crash Replacement 5 Years
Wheel Size
Rear Axle Configuration
Freehub Option
Spoke and Nipples
Decal Color (refer to the paragraph about colors)
Tubeless Tape + Valves