Shimano GRX FCRX810 crankset

Shimano GRX, the new gravel components designed for 11-speed drivetrains and cassettes up to 42 teeth. With the new 48/31-tooth crankset, the GRX components offer a wide gear range for a variety of applications, from gravel and cyclocross to touring. Shimano GRX, the first gravel-specific component family designed equally for speed and safe bike handling on loose surfaces, is the result of an intensive and extensive research, testing and development process that incorporated information and feedback from countless riders who are out and about on trails, forest tracks, gravel roads or tarmac. Whether it’s gravel riding in the strictest sense, road bike adventures off-road, bikepacking, commuting or the demands of competitive cyclocross riders: Shimano’s GRX components offer countless options that leave nothing to be desired, from gear ratios and spacing, customisable ergonomics and integrated control of dropper seatposts right through to specific gravel wheelsets with wider rim profiles.

Shimano GRX FC-RX810 crankset:

The GRX cranksets have been developed to tackle a wide variety of terrain and riding styles. All versions feature a 2.5 mm wider chainline, which creates more space in the frame design and allows for wider tyres. The GRX single-chainring cranksets minimise shifting complexity by requiring shifting only at the rear cassette, with optional RX800/600 40T cassettes or RX800 42T cassette, and are equipped with chainrings featuring Shimano’s Dynamic Chain Engagement+ tooth profile, which ensures optimal chain retention, particularly on rough terrain.

Hollow-forged chainrings, hollow-forged, extra-sturdy crank arms and a reduced outer surface area bring the weight of the new GRX FC RX 810 crankset down to 722 grams. The design of the 2x11-speed Hollowtech II crankset not only boasts a look and aesthetic with cult potential, but also ensures enhanced performance. A wider, yet lighter than its predecessor, crank arm and the large chainrings with Hollowglide technology increase stiffness and optimise power transfer to the pedal.

Shimano GRX FC-RX810 Crank Technology:

• Intended use: Gravel, Cross, Touring
• 11-speed 40-tooth
• Bore diameter 110 mm, 4-arm asymmetrical
• Chainline 50.1 mm
• Weight: 722g excluding bottom bracket (manufacturer’s specification)
• The bottom bracket is not included
• Scope of delivery: left and right crank arms including chainrings

Compatible bottom bracket shells - bottom bracket

• BSA threaded shell, 68 mm installation width – Shimano
  Dura Ace bottom bracket, part no. SMBBR60B
• Bottle cage ITA thread, installation width 70 mm – Shimano
  Dura Ace bottom bracket, item no. SMBBR601
• Pressfit BB86 shell, installation width 86.5 mm, press-fit depth 41 mm –
  Shimano bottom bracket, part no. SM-BB72-41B
  or Wheels MFG Outboard, part no. ABEC3 BB86-OUT-BB
• BB30 shell, installation width 68 mm, press-fit depth 42 mm –
  Wheels MFG inner bearing, item no. BB30-OUT-1 or Wheels Ceramic, item no. BB30-OUT-15
• BB30A shell, installation width 73 mm (asymmetrical), press-fit dimension 42 mm –
  Wheels MFG inner bearing, part no. BB30A-OUT-SHIM
• Pressfit BB30 bottom bracket shell, installation width 68 mm, press-fit depth 46 mm –
  Wheels MFG inner bearing, item no. PF30-OUT-1 or Wheels Ceramic, item no. PF30-OUT-15
• Pressfit BB30A shell, installation width 73 mm asymmetrical, press-fit dimension 46 mm –
  Wheels MFG inner bearing, item no. PF30A-OUT-SHIM
• BBRight shell, installation width 79 mm, press-fit dimension 46 mm –
  Wheels MFG inner bearings, item no. BBRIGHT-OUT-1 or Wheels Ceramic inner bearings, item no. BBRIGHT-OUT-3
• BB386 Evo shell: installation width 86 mm, press-fit dimension 46 mm –
  Wheels MFG inner bearing, item no. PF30-OUT-1 or Wheels Ceramic inner bearing, item no. PF30-OUT-15, each plus Wheels adapter 386EVO-SHIM
• Trek BB90 housing: installation width 90 mm, press-fit dimension 37 mm – FSA
  inner bearing, item no. 230-6001
• T47 threaded shell: M47x1, bottom bracket width 68–100 mm –
  inner bearing: Wheels Outboard Part No: T47-OUT-SHIM-AC

Herstellerinformation: SHIMANO INC., 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan, www.shimano.com | EU contact: Shimano Europe BV, High Tech Campus 92, 5656 AG Eindhoven, The Netherlands, www.shimano.com