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Retrospec Harper SS

Retrospec Harper SS
  • Color: Matte Black
  • Color: Navy Blue
  • Color: Oat
  • Color: Olive Drab
  • Color: Slate
Color: Matte Black
Size: Select size
Please select options Unavailable


A traditional fixie platform built with a High Tensile Strength steel frame and fork for worry free riding mile after mile. Equipped with Dual Pivot Sidepull hand brakes, 30mm Deep V double wall alloy rims, 700 x 28c tires, Forged alloy 3-piece cranks with sealed cartridge bottom bracket, and low-profile BMX pedals.

Flip flop between fixed and single speed
Harper is our 2-in-1 dream ride. Stick to single speed, or switch to a fixie with a flip of the back wheel for a guaranteed workout.

Easy riding and maintenance
As simple as it gets. Single speed bikes have fewer components than multi-gear bikes, which makes them lighter, less complicated, and easier to care for. Enjoy an easy ride without all the bells and whistles.

Conquer city streets
Harper is designed for city riding. Grooved tires grip the pavement and dispel water. Reliable front and rear brakes stop on a dime at unexpected red lights. Barspin clearance with no toe overlap allows you to make sharp turns.


Frame Hand Built tig-welded high-tensile steel, "UrbanComfort" design
Fork Unicrown, Threaded, 28.6mm, 1x fender-eyelet
Rims Retrospec aluminum double-wall 32H, 30mm V-section, precision machined brake tracks
Hubs Retrospec low-flange aluminum alloy, loose-ball bearings, 32H, rear flip-flop, bolt-on
Spokes 14G UCP
Tires Retrospec 700 x 28C all-season, P/V valves
Bottom Bracket Sealed Cartridge, 68 x 103mm
Crankset Harper Forged Aluminum Alloy 165mm x 46T x1/8"
Cassette/Freewheel 16T x 1/8"
Chain KMC C1 1/2 x 1/8"
Brakes Aluminum alloy dual-pivot side-pull calipers & aluminum brake levers. 47-57mm reach.
Handlebars Aluminum Alloy 520mm Wide x 30mm Rise, 25.4
Tape/Grips Retrospec Triangle Kraton 125mm length
Stem Quill-type aluminum 80mm extension, -17° rise, 25.4 handlebar clamp, 22.2 quill
Headset 1 1/8" (28.6mm) steel, Threaded
Seatpost Aluminum Alloy Seat Post 25.4 x 300mm with Micro Adjust head
Saddle Retrospec Pista
Pedals Low-Profile Platform, Reinforced Nylon resin, 9/16"

* Subject to change without notice.

Part Numbers

Option UPC MPN
Matte Black / X-Small 810015708538 4199
Matte Black / Small 810015708545 4200
Matte Black / Medium 810015708552 4201
Matte Black / Large 810015708569 4202
Matte Black / X-Large 810015708576 4203
Navy Blue / X-Small 810015708583 4204
Navy Blue / Small 810015708590 4205
Navy Blue / Medium 810015708606 4206
Navy Blue / Large 810015708613 4207
Navy Blue / X-Large 810015708620 4208
Oat / X-Small 810015708637 4209
Oat / Small 810015708644 4210
Oat / Medium 810015708651 4211
Oat / Large 810015708668 4212
Oat / X-Large 810015708675 4213
Olive Drab / X-Small 810015708682 4214
Olive Drab / Small 810015708699 4215
Olive Drab / Medium 810015708705 4216
Olive Drab / Large 810015708712 4217
Olive Drab / X-Large 810015708729 4218
Slate / X-Small 810015708736 4219
Slate / Small 810015708743 4220
Slate / Medium 810015708750 4221
Slate / Large 810015708767 4222
Slate / X-Large 810015708774 4223