Project: RIGHT

Project: RIGHT

Last year, Jason at Fairwheel bikes in Tucson approached me about building a frame for a customer who wanted a singlespeed road bike to have custom paint by artist Geoff McFetridge. Seemed simple enough. But then Jason had an idea about doing a single-sided frame…. Generally always being up for a design challenge, I said sure, and set about figuring out how I would do it.

I decided I wanted to keep the single chainstay as close to the center line of the bike as possible, which would also enable me to put the drive cog on the outside of the frame. And being a belt drive bike, this makes belt installation very easy (no frame split required!). The rear hub is custom designed – the shell and axle are one piece, which I machined myself, had anodised and then built the wheel. The bearings are press-fitted into the tube at the end of the chainstay – the axle slides through this, then the freewheel carrier is  splined onto the end of the axle with a cap bolts in place to hold everything together. An eccentric bottom bracket allows for tensioning the belt.

I modelled the whole rear end in 3D CAD to enable me to check for wheel center-line, tire clearance and belt line.

The front ‘fork’ was comparatively straight forward – I machined a Lefty style aluminium axle, which press fits into a socket at the base of the leg. The fork crown has a clamp to accept a one-piece stem/steerer, which also allows the front brake cable to run through the stem, steerer and fork leg to the caliper. Which was a problem itself – to mount it on the right meant that it was upside down. But some modifications of the caliper – removing the outer cable stop and repositioning the leverage arm to pull upwards – plus adding an internal cable stop to the leg, allowed it to work correctly in this unconventional location.

Once I had brazed everything together and test ridden the bike, it went off to Co-Motion for the striking green base paint, and then onto Geoff for the custom artwork. And it all came together in time to show at NAHBS. There are a bunch of construction shots in my news pages if you’d like to see the project in progress.

 

12 Comments

  1. Great looking bike with a really cool idea.

    Came here from wired.com

    • Nice work. That bike is very innovative especially the way you did the single sided rear end.

  2. amazing! Steel is REAL but could you do carbon? how much does it weigh now?

  3. Pouahhh !! Exactly what i want to do since a couple of year.. :-/

  4. Absolutely incredible! I have never seen such painstaking attention to functional detail (no fancy but pointless lugs here!) on any other builders bikes. Phenomenal.

  5. I stumbled here today following threads and am amazed at this wonderful ride. It is interesting to remember that it takes more thinking and calculation to remove parts than just adding more. Simplicity takes some thought, but feels so good.

    I’ll be following English’s work regularly now that I found ‘em.

    Paddy O’Furniture

  6. Curious how it rides, be interesting to take it for a spin.

  7. nice work!!! great work on the details, both functional and artistic.

    id like to see it with gears, and maybe with out the bar between the crank and the seat-post like the kestrel bikes, and a integrated stem like the one on the new look bikes.

    too much to ask?

    • Thanks Daniel, potentially your ideas could be incorporated, it would just require some more structural engineering. On this build low weight was a priority so keeping the frame triangulated was the best way to go.
      Rob.

  8. Just awesome work. If I ever get a custom, it’ll be an English.

  9. I love this (and many of the others too, especially newest TT bike). Completely refreshing and beautifully refined.

    Curious to know if having the weight not evenly distributed about the centreline matters? I think I recall reading somewhere a long time ago that the part of the reasoning for the Lefty forks was to offset the weight of the drivetrain on right hand side. I presume it doesn’t make much of a difference, but curious to hear from the expert.

    Keep up the great work. Can’t wait to see what’s next on the drawing board..

    • Hi Jamie,

      Thanks for the kind words. There is no perceptible difference in feel with the single sided frame – the weight difference is tiny compared to the weight of the rider, and is so close to the center line that it has very little effect. I should be doing another couple of single sided bikes soon!

      Best regards,
      Rob.

Trackbacks/Pingbacks

  1. English Cycles Project Right | Road Bike News, Reviews, and Photos - [...] more information visit www.englishcycles.com and read more about Project Right’s design process. #gallery-2 { margin: auto; } #gallery-2 …
  2. Spin Doctors convene to roll out their works of art « Kitesurf Bike rambling - [...] Project Right is a single-sided, single-speed belt-driven road bike commissioned by Fairwheel bikes in Tuscon, Arizona. It’s an intriguing ride, …
  3. Project Right – The Final Update - Fair Wheel Bikes - [...] for Project RightRoad Bike ReviewRoad Bike ActionWired.comBike RadarBike RumorVelonewsof course English Cyclesand finally Our BlogIn ClosingWe’d like to offer sincere …
  4. English Cycles Project: RIGHT - [...] becomes more evident the closer one looks (there’s more detail photos on the English Cycles website): a custom-machined rear …
  5. Pravák od English Cycles — Cycling & Coffee - [...] Fotografie ze stránek English Cycles. [...]
  6. Fairwheel Bikes V3 Di2 | English Cycles - […] with Fairwheel Bikes in Tucson, following Emiliano’s road bike (Emiliano works at FWB) and Project Right (which was for …

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