Blog 29-06-23

As with the Harley Quinn single speed build, emails have been flooding in with requests for more information on the conversion of the Surly Ogre to single speed. For those who like the Surly Ogre so much they want one themselves, the Surly Ogre is available as a complete bike or if you are more inclined to build one yourself, the frame and forks are also available. The complete bike costs between £1800 to £2000 with the frame set costing around £800. One thing about the Surly Ogre frame is you can fit just about any gearing setup, including single speed or fixed gear, internal hub gears, including Rohloff, and also normal derailleur gears.

Build specification:

  • Frame and fork: Surly Ogre, medium (2012)
  • Headset: FSA
  • Bottom bracket: Race Face
  • Seat clamp: Surly
  • Seat stem: Race Face 27.2mm
  • Saddle: Charge Spoon
  • Handlebars: Alpkit Confucius
  • Handlebar stem: Race Face 100mm
  • Grips: Ergon GP-1
  • Stem spacers: FSA
  • Brake levers: Avid Speed Dial 7
  • Brake calipers: Avid BB7 mechanical
  • Brake cables: Shimano
  • Brake rotors: Avid 160mm
  • Crankset: Race Face Evolve
  • Chainring: Surly Stainless Steel 32T
  • Chain: SRAM PC-830
  • Freewheel: White Industries 18T
  • Pedals: DMR V12 Magnesium
  • Front hub: Surly Ultra New Disc 100mm
  • Rear hub: Surly Ultra New Single Speed Disc 135mm
  • Rims: Halo Freedom Disc 700c
  • Rim tape: Schwalbe self adhesive 18mm
  • Inner tubes: Schwalbe
  • Tyres: Schwalbe Marathon Tour 700 x 35 mm


  • Mudguards: SKS Bluemels
  • Front lights: Hope Vision R2 Epic LED
  • Rear light: Hope District Plus
  • Frame bag: Surly
  • Handlebar bag: Alpkit Drop Bear

And now for the final weigh in. The Surly Ogre started off at 15.80 kg and now tips the bathroom scales at a svelte 11.10 kg with the bulk of the loss down to tyres, gearing, inner tubes and a few smaller items. Watch out for the next project, Surly Pugsley single speed fat bike!

Copyright ©2023 Gary Buckham. All rights reserved.

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