Bino: Dahon Vitesse T20 (2013)

This is a folding bicycle originally meant for basic commuter use.

Since purchase, I have outfitted Bino to grow along with my strengths as a cyclist – at slightly greater cost than expected. Frame joint problems in the past have sidelined him more than I’d like, but he now sports a full 2×10-speed drivetrain and sees duty on short trips around my vicinity.

Why have I called this bike a “T10” or “T20”?

Credit goes to Steve Tan of Hands On Bike for the inspiration. Dahon and Tern have not used the “T” designation for any specification of their bikes, and the letter matches up well with the Shimano Tiagra drivetrain and Alivio Trekking braking hardware, so I figured, why not? The designation describes the bike’s suitability for light touring, as well.


//frame + fork

  • Dahon KA-series 6061 aluminum alloy folding frame
    • 130 mm O.L.D.
    • ViseGrip main frame hinge and latch
    • Vertical quick-release dropouts
    • Non-replaceable rear derailleur hanger
  • Dahon chromoly steel fork, 74 mm O.L.D., vertical quick-release dropouts
  • Dahon aluminum telescoping handlepost
  • Dahon Magnetix system


  • Shimano 105 CN-5701 10-speed chain
  • Shimano FC-R565 road double crankset, 172.5 mm arms, 50/34T
  • Shimano Ultegra SM-BBR60 Hollowtech II outboard bottom bracket
  • Shimano Tiagra FD-4600-F braze-on front derailleur
    • LitePro SP8 front derailleur adapter
  • Shimano Tiagra SL-4603 triple front trigger shifter
  • Shimano Tiagra CS-4600 10-speed cassette, 12-30T
  • Shimano Tiagra RD-4600-GS rear derailleur
  • Shimano Tiagra SL-4600 rear trigger shifter (2×10)
  • Shimano SP41 shift cable housing
  • Shimano steel shift cables

//rolling stock

  • 20″ (406 mm) custom wheelset by Tryon
    • LitePro folding bike hubs, 74mm F, 130 mm R, anodized red
    • Newson Sportec rims, silver, 406 mm x 14 mm
    • Newson Sportec spokes and nipples, black
  • Schwalbe Kojak slick tires, 20″ x 1.35″ (ISO 35-406)


  • Shimano Alivio Trekking BR-T4000 V-brake arms front and rear
  • Shimano Alivio Trekking BL-T4000 brake levers
  • Shimano V-brake pads
  • Alligator brake cables and compressionless brake cable housing


  • Dahon 25.4 mm x 580 mm aluminum alloy flat handlebar
  • Dahon 33.9 mm x 580 mm aluminum alloy oversize seatpost
  • Ergon GP3-S grips with integrated bar ends
  • Specialized Power Expert saddle, 143 mm
  • Redshift Sports Arclight flat pedals and light system


  • Topeak Wedge Drybag S saddle bag
  • Cat Eye Reflex Auto TL-LD570 rear safety light
  • Cat Eye Volt 800 HL-EL471RC front light
  • SKS x Dahon chromoplastic fenders
  • SKS long rubber mudflap
  • Lezyne Power Cage aluminum bottle cage
  • Giyo GP-61S mini pump
  • Biologic Portage rear rack
  • LitePro seatpost clamp
  • LitePro Pletscher-style double-leg kickstand


Interested to see how Bino has changed over the years? Follow the links below.

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