Ritchey Outback with Shimano GRX, Size Medium



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A Ritchey Outback with a Shimano GRX groupset.

Designed by Tom Ritchey who rides about 10,000 miles (16,000 km) per year, and most of that is off-road. Ritchey has a deep knowledge of off road riding and bicycle geometry. The Outback was awarded “Best Bike Packing Bike”.

The Outback has several practical and adaptable features make the bike versatile. Rack and fender mounts help to keep things dry and expand the load-carrying capacity for longer bikepacking adventures, while clearance for 700c x 48mm or 650b x 2.0 in tires allows the bicycle to be used on extremely rough terrain. The frame accepts flat-mount disc calipers, and the new all-carbon fiber Ritchey Adventure Fork. Multi-purpose mounts on the fork blades gives you more places to stow supplies for longer trips.

TIG-welded with proprietary triple-butted Ritchey Logic steel tubing, the Outback frame is well built, resilient over the harshest terrain and responsive.

  • Includes new Ritchey Adventure Fork with multipurpose mounts
  • Accepts 700c x 48mm or 650b x 2.0in tires
  • Features rack and fender mounts

Frame Specifications

  • Material: heat-treated, triple-butted Ritchey Logic steel tubing – TIG welded
  • Rack and fender mounts
  • Ultra-light forged and machined straight 1-1/8″ headtube
  • WCS headset included (upper IS42/28.6 – 16mm stack height | lower IS42/30)
  • 142mm spacing (12mm alloy thru-axle included)
  • Replaceable stainless-steel derailleur hanger
  • 27.2mm seat tube with integrated seat collar (max torque setting: 6Nm)
  • Front derailleur clamp size: 28.6mm (max torque setting: 2.5Nm) – not included
  • Bottom bracket: 68mm – English threaded
  • Can accommodate 1X or 2X chainrings
  • Crankset min/max ring size – single: 36 to 46t / double: 46/30t to 50/34t
  • External cable routing
  • Bottle mounts: 3


  • New Ritchey Carbon Adventure Fork with multi-purpose, rack and fender mounts
  • 1-1/8″ straight steerer with integrated 45-degree crown race
  • 100mm spacing (12mm alloy thru-axle included)
  • Steerer length: 300mm
  • Axle-crown: 393mm
  • Rake/Offset: 50mm
  • Fork max payload: 3kg per side

Tire Compatibility

  • Wheel and tire compatibility: 700 x 48mm or 650 x 2.2 in (depending on tire/rim manufacturer)
  • Frame max spacing: 58mm
  • Fork max spacing: 60mm

Brake Compatibility

  • Flat-mount brakes front and rear: 140mm (160mm max – adaptors available separately)
  • Frame flat-mount bracket height: 10mm


  • Size: Medium
  • Frame weight: 2,175g
  • Fork weight: 445g (with uncut steerer / not including axle)

Component Specifications:

  • GRX groupset (hydraulic disc, mechanical groupset, black)
  • Crankset: 172.5  mm, 48-31 chainrings
  • Cassette: 11-34
  • Bottom Bracket: Shimano BBR60, threaded BSA
  • GRX 650B Alloy wheels with Rene Herse Umtanum Ridge 650B x 2.2″ tires (alternative wheel options at checkout: GRX 700C Alloy or Carbon wheels with Rene Herse Hurricane Ridge 700C x 42mm, Rene Herse Snoqualmie Pass Endurance 700C x 44mm tires) or Maxxis Rambler Tires (700c x 38, 40, 0r 45mm)
  • Stem: PRO Discover 10 cm
  • Handlebar: PRO Discover Medium Flare Alloy Handlebars, Size 42 C-C
  • Seatpost: PRO PLT, Size 27.2, 0 offset
  • Saddle: Fizik Aliante R3
  • Pedals not included (Optional add-on at checkout)






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