Surly Big Dummy
My Surly Big Dummy.  A true load carrier, possibly too good.  Here in travel mode.  Seat-stay frame bag by Porcelain Rocket, 2x60L Ortlieb dry bags and OMM Sherpa-based rack-pack by me
Does surprisingly well off-road (photo. J Cruz)
Frame 18″ Surly Big Dummy (pre 2011 style)  Military Green
Fork Rockshox Tora 302 85-130mm U-turn  (firm coil)
Canecreek S3 headset
Front Wheel Velocity 26″ Cliffhanger rim (36H, milled for rim brakes)
Maxxis Ardent 26×2.4″ or Schwalbe Marathon Plus 26×1.5″  tyres (off-road or urban)
Hope Pro-2 36H hub
Cockpit Easton EA70 Monkey-bars
Ergon GR2 grips
Ritchey 30degree MTB Comp 90mm stem
Cateye Enduro8 cycle computer
2006 Ortlieb Classic bar bag
Seat Brook England Flyer saddle
Pro PLT Alloy Seat Post ( 27.2mm x 350mm)
Drivechain Shimano XT crankset (44/32/22)
Shimano M520 pedals
Shimano HG83 chain (1.5ish chains)
Shimano XT shadow rear mech. M772 SGS Long cage
Shimano SLX M661 front mech.
Shimano XT 11-34 9 speed cassette
Goodridge cable housing
Shimano Deore 2011 model shifters
Brakes Avid BB7 cable disc brakes (185mm rotor Front-160mm Back)
Avid Speed dial 7 brake levers
Rear Wheel Velocity 26″ Cliffhanger rim (36H)
Maxxis Ardent 26×2.4″ or Schwalbe Marathon Plus 26×1.5″ tyres (off-road or urban)
Hope Pro-2 36H hub
Carrying and Accessories Xtracycle V-racks with 2011 Freeloader bags and girth strap
Xtracycle teck-dek or normal deck with ‘magic carpet’
Porcelain rocket BD chainstay pack
2 x Ortlieb X-plorer kit bag (59L each)
Topeak Modula XL bottle cage with Nalgene 48oz bottle and drinking tube
Specialized MTB Air Tool pump
Cateye 610 rear light

AMPeirce 4″ fat/29+/27.5+ Bike

An iteration beyond the Twenty2 with some things improved and adjusted.  The geometry’s just as I want it (15mm shorter and with a 73mm BB shell), and the frame is more versatile as it’s rear triangle is symmetrical, rather than offset.  These were the main motivations, but while I was at it I took the opportunity to get bosses for a bolt-in framebag and an upwardly curved TT to maximise frame-bag space.


29+ hardtail mode
29+ hardtail mode

More can be found here, here and here.

AMPeirce Cyclocross-inspired Commuter

After finally wearing out my long-suffering Specialized Tricross, I took the opportunity to get Andy to make the frame that would go as near as possible to my ideal commute bike.  I commute by bicycle year in and year out.  In summer the weather’s hot and not a bother to a bicycle, but in winter there’s a lot of rain that mixes badly with the ‘sandpit’ that we live in.  Not to mention the salt.  I’d grown tired of continually adjusting cantilever brakes, wearing rims, chains and cabling out.  This bike makes inroads into these issues with disc brakes, full-length cable housing and a 73mm BB shell to counteract the rapidity that I go through 68mm BB bearings.  As the spec-list below shows, I can also use the wheels on this bike for light-weight 29″ mtb touring either on this frame (with narrower mtb tyres) or on the Ti AMPeirce frame with wider ones.  It’s also set up with Paragon Machineworks slider drop-outs so that I can run it as a singlespeed or with an IGH if that strikes my fancy later on.


Frame Custom AMPierce Steel (73mm BB shell, 135mm OLD, Paragon Slider dropouts, full length cable housing TT routing and tapered HT)
Fork TRP Carbon Disc Cyclocross fork 15mm T/A
Chris King Integral headset
Front Wheel Stan’s NoTubes Crest 29er rim Black 32H
Schwalbe Durano 700x25cc folding tyre
SP PD-8X dynamo hub
Cockpit Thomson Carbon Road Drop Bars 46cm CtoC
Cinelli Cork gel bar tape
Stem – Thomson 110mm/10degree rise
Seat Brooks England B17 Ti saddle – brown
Eriksen Sweetpost Ti 27.2x300mm
Drivechain SRAM S902 110BCD 175mm crank arm crankset
Chris King MTB bottom bracket
44T Wolf Tooth Narrow Wide 110mm BCD chainring
Shimano Ultegra 10-speed chain
Shimano 105 RH 10speed shifter/brake
Shimano 105 LH shifter/brake (brake only used)
Brakes Avid BB7 Road SL mechanical disc brakes 160mm rotor f/r
Rear Wheel Stan’s NoTubes Crest 29er rim Black 32H
Schwalbe Durano 700x25cc folding tyre
Hope Pro2 Evo 135x10mm 32H Hub w DT Swiss RMS 10mm QR
Carrying and Accessories k-lite 1000/600 Lumen BikePacker Pro Dynamo light

Twenty2 Cycles Fat Bike (now sold)

An urban start for an outback machine – big tyres mean ‘floating’ over sand and pea gravel, along with some ‘squish’ to add comfort

Inspired by riding with Joe Cruz, and meeting Scott Felter’s Jones Space-frame, this is a bike primarily aimed at soft stuff that would be otherwise un-rideable or nearly so.  The need arises from our local mountain bike trail conditions in the dryness of summer, but also from a desire to ride the Canning Stock Route – one of Australia’s most challenging and remote tracks through 2000km of the West Australian hinterland, and lots of sand.

The birth of the bicycle can be seen here and here, and some thoughts on practical issues with the build can be found here.

Frame Custom Twenty2 Titanium ( 135mm OLD, offset rear triangle)
Fork Twenty2 custom Chromoly 135mm Symmetrical (465mm Axle-Crown)
Hope Integral (44mm) headset
Front Wheel Surly Rolling Daryl 32H rim – windowed, with rim tape
45North Husker Du 26 x 4″ 120tpi folding tyre (BFL 120tpi for CSR)
Hope Pro2 Evo FatSno 135mm front hub
Cockpit Jones Loop H-Bar Aluminium
Ergon GR1 BioCork grips
Stem – Easton EA70 100mm 20 degree rise
Seat Brooks England B17 Ti saddle – brown
Raceface Deus seatpost 30.9x400mm
Drivechain Raceface Atlas FR 100mm crank and bottom bracket
36T Hope SS Chainring
SRAM PC890 8 Speed chain (Shimano HG93 for CSR)
Rohloff cables and housing
Rohloff twistgrip
Brakes Hope Tech X2 Evo hydraulic disc brakes (183mm front/160mm Rohloff rear rotors) (Avid BB7 Rear only for CSR)
Rear Wheel Surly Rolling Daryl 32H rim – windowed, with rim tape
45North Husker Du 26 x 4″ 120tpi folding tyre
Rohloff Speedhub 500/14 – disc (black)
Carrying and Accessories Porcelain Rocket Booster Rocket Seat Pack
Porcelain rocket Frame Bag
Porcelain Rocket Ground Control handlebar pack
Decked in Porcelain Rocket finery



  1. I like your Big Dummy. I have just bought one to use for everyday use as well as touring in the South West. I have only ever seen one other in Perth, that was in Subiaco but not seen it for a while yet.

    • A great buy :-)
      I’ve not seen too many Big Dummies, but there are a few Xtracycle-extended bikes around Fremantle, including one with an electric-assist motor built into the front wheel :-)

  2. How do you fly with your Big Dummy? Very curious indeed… Could simplify things for us; we’d deemed it impossible to fly with our Edgerunner.

    • I’ve flown with the BD by taking both wheels off, fork off and (obviously) handlebars. Then using about 1.25 boxes to allow the extra length but it ends up less tall. That minimisation of total dimension seemed to satisfy things. If you look at one of the Panamá posts you’ll see photos of the finished item

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