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Why We Make It 

What even is gravel riding? It runs the gamut from leisurely off-road exploration to speed-focused dirt and single-track riding. This wheel is more the latter than the former, with an aerodynamic profile and low rim weight. It aptly fills the need for a rugged, high-performance wheelset in our product lineup. 

Why You Want It 

Reserve’s 40|44 GR rims are a 40mm front paired with a 44mm rear, built wide to allow for tires up to 50c. Reserve uses internally reinforced spoke holes to strengthen the area where the rim sees the most force, around the spoke nipple.  

We pair the 40|44 rims with our R45D™ Centerlock hubs, powered by our patented RingDrive™ system. You want them because their 45-points of simultaneous engagement deliver instantaneous engagement and superior power transfer. We wrap the system in a lightweight hub body along with our legendary, made-in-house bearings, and finish them with a one-piece axle that delivers laser-precise bike handling. In short, these hubs just roll faster, last longer, and look better than anything else out there.   

Chris King bearings, both steel and ceramic, have heat-treated, surgical grade steel races that are machined simultaneously to ensure perfect matching. The quality and speed of our bearings is what you will feel (and hear) on every ride. As Chris King bearing tracks burnish, they actually get faster (we have data), which means the more you ride, the faster they get. A little bit of regular love (i.e. service) will keep these hubs rolling for years upon years of demanding use. 

This wheelset comes with the legendary “angry bee” sound, and you can choose from a bunch of sharp hub colors, including basic black.  

  • Built in-house with legendary Chris King precision  

  • Chris King R45D 24 hole front hub  

  • Chris King R45D 24 hole rear hub 

  • Internal rim width - Front 27.4mm, Rear 27mm 

  • External rim width - Front 36mm, Rear 34.4mm 

  • Compatible with both clincher and tubeless tires 

  • Fillmore valves included
  • Chris King-backed Lifetime warranty on our hubs  

  • Reserve-backed 5-year crash replacement policy 

  • Reserve-backed lifetime warranty on rims  

Wheel Specifications

Rim: Reserve 40|44GR
Wheel Size: 700c  
Rim Type: Hooked Tubeless
Recommended Tire Width: 30-50
External Width (mm): Front 36, Rear 34.4
Internal Width (mm): Front 27.4, Rear 27
Rim Depth (mm): 40 front, 44 rear
Hub Configuration: 24/24 R45D Centerlock. 12x100 Front Axle, 12x142 Rear Axle.
Hub Options: HG-EV, XDR, Micro Spline
Nipples: Black Alloy
Lacing Pattern: 2-Cross
Rim Weight (g): 400 front, 425 rear



Why We Make It 

What even is gravel riding? It runs the gamut from leisurely off-road exploration to speed-focused dirt and single-track riding. This wheel is more the latter than the former, with an aerodynamic profile and low rim weight. It aptly fills the need for a rugged, high-performance wheelset in our product lineup. 

Why You Want It 

Reserve’s 40|44 GR rims are a 40mm front paired with a 44mm rear, built wide to allow for tires up to 50c. Reserve uses internally reinforced spoke holes to strengthen the area where the rim sees the most force, around the spoke nipple.  

We pair the 40|44 rims with our R45D™ Centerlock hubs, powered by our patented RingDrive™ system. You want them because their 45-points of simultaneous engagement deliver instantaneous engagement and superior power transfer. We wrap the system in a lightweight hub body along with our legendary, made-in-house bearings, and finish them with a one-piece axle that delivers laser-precise bike handling. In short, these hubs just roll faster, last longer, and look better than anything else out there.   

Chris King bearings, both steel and ceramic, have heat-treated, surgical grade steel races that are machined simultaneously to ensure perfect matching. The quality and speed of our bearings is what you will feel (and hear) on every ride. As Chris King bearing tracks burnish, they actually get faster (we have data), which means the more you ride, the faster they get. A little bit of regular love (i.e. service) will keep these hubs rolling for years upon years of demanding use. 

This wheelset comes with the legendary “angry bee” sound, and you can choose from a bunch of sharp hub colors, including basic black.  

  • Built in-house with legendary Chris King precision  

  • Chris King R45D 24 hole front hub  

  • Chris King R45D 24 hole rear hub 

  • Internal rim width - Front 27.4mm, Rear 27mm 

  • External rim width - Front 36mm, Rear 34.4mm 

  • Compatible with both clincher and tubeless tires 

  • Fillmore valves included
  • Chris King-backed Lifetime warranty on our hubs  

  • Reserve-backed 5-year crash replacement policy 

  • Reserve-backed lifetime warranty on rims  

Wheel Specifications

Rim: Reserve 40|44GR
Wheel Size: 700c  
Rim Type: Hooked Tubeless
Recommended Tire Width: 30-50
External Width (mm): Front 36, Rear 34.4
Internal Width (mm): Front 27.4, Rear 27
Rim Depth (mm): 40 front, 44 rear
Hub Configuration: 24/24 R45D Centerlock. 12x100 Front Axle, 12x142 Rear Axle.
Hub Options: HG-EV, XDR, Micro Spline
Nipples: Black Alloy
Lacing Pattern: 2-Cross
Rim Weight (g): 400 front, 425 rear

WB186201

Chris King- Reserve 40/44 GR R45D Wheelset



Color
Black
Silver
Red
Matte Jet
Matte Turquoise
Midnight
Violet
Matte Mango
Two Tone Black Punch
Matte Jade
Matte Gold
Bearing Type



Availability and stock levels vary by color & specification, please check each color below for stock information.

Why We Make It 

What even is gravel riding? It runs the gamut from leisurely off-road exploration to speed-focused dirt and single-track riding. This wheel is more the latter than the former, with an aerodynamic profile and low rim weight. It aptly fills the need for a rugged, high-performance wheelset in our product lineup. 

Why You Want It 

Reserve’s 40|44 GR rims are a 40mm front paired with a 44mm rear, built wide to allow for tires up to 50c. Reserve uses internally reinforced spoke holes to strengthen the area where the rim sees the most force, around the spoke nipple.  

We pair the 40|44 rims with our R45D™ Centerlock hubs, powered by our patented RingDrive™ system. You want them because their 45-points of simultaneous engagement deliver instantaneous engagement and superior power transfer. We wrap the system in a lightweight hub body along with our legendary, made-in-house bearings, and finish them with a one-piece axle that delivers laser-precise bike handling. In short, these hubs just roll faster, last longer, and look better than anything else out there.   

Chris King bearings, both steel and ceramic, have heat-treated, surgical grade steel races that are machined simultaneously to ensure perfect matching. The quality and speed of our bearings is what you will feel (and hear) on every ride. As Chris King bearing tracks burnish, they actually get faster (we have data), which means the more you ride, the faster they get. A little bit of regular love (i.e. service) will keep these hubs rolling for years upon years of demanding use. 

This wheelset comes with the legendary “angry bee” sound, and you can choose from a bunch of sharp hub colors, including basic black.  

  • Built in-house with legendary Chris King precision  

  • Chris King R45D 24 hole front hub  

  • Chris King R45D 24 hole rear hub 

  • Internal rim width - Front 27.4mm, Rear 27mm 

  • External rim width - Front 36mm, Rear 34.4mm 

  • Compatible with both clincher and tubeless tires 

  • Fillmore valves included
  • Chris King-backed Lifetime warranty on our hubs  

  • Reserve-backed 5-year crash replacement policy 

  • Reserve-backed lifetime warranty on rims  

Wheel Specifications

Rim: Reserve 40|44GR
Wheel Size: 700c  
Rim Type: Hooked Tubeless
Recommended Tire Width: 30-50
External Width (mm): Front 36, Rear 34.4
Internal Width (mm): Front 27.4, Rear 27
Rim Depth (mm): 40 front, 44 rear
Hub Configuration: 24/24 R45D Centerlock. 12x100 Front Axle, 12x142 Rear Axle.
Hub Options: HG-EV, XDR, Micro Spline
Nipples: Black Alloy
Lacing Pattern: 2-Cross
Rim Weight (g): 400 front, 425 rear
  • AVT.Bike is an authorized Chris King® dealer and proud to carry one of the largest selections of Chris King products available online and shipped anywhere in the world.
  • Chris King components including hubs, headsets and bottom brackets are available in 9 stock colors.
  • LIFETIME Warranty on all Chris King products.
  • Other colors and product options are available depending on stock levels, so if you don't see the color or exact product you are looking for please contact us.
  • If you have any technical questions at all on Chris King products please contact us and we'll be pleased to help you out!
  • All Chris King products are responsibly manufactured in Portland, Oregon, USA.
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Available For Pre Order.
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