Rocker SS 29

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  • $2,699.00
  • Regular price $3,199.00







Rocker SS 29

Are you a mod or a rocker?

Spot Brand practically invented hardtail singlespeeding, and we consider it one of the most rewarding mountain biking experiences: you, the trail, one gear, no excuses. The Rocker SS 29 embodies that ethic and raises the bar. We sub out the chain for a super-strong red-hot carbon fiber belt that won’t stretch, never needs lube and requires only a wash with the garden hose after dirty rides. Just grab your bike and go. The Reynolds 853 steel frame in Matte Estoril Blue is fun to ride and uber versatile--add a derailleur for geared racing and you’ve got a quiver bike of one. We conceived the Rocker SS 29 to embody the perfect mix of race-ready speed and enduro rowdiness. Hence the wide 2.35-inch Nobby Nics and durable Ach MK3 rims for confident footing on rocks and roots, the wide-diameter seat post designed for more dropper compatibility, and the ISCG tabs for bash guards. Yeah, we practically invented the category, but we never stop innovating and redefining it.


Technical Information

Reynolds 853 DZB Tubing

Seamless Air-Hardening Heat-Treated Steel with Double Butted Zones. The benefits of air-hardening steels are particularly noticeable in the weld area where, unlike conventional steel alloys, strength can actually increase after cooling in air immediately after welding. 853 is heat-treated to give high strength and damage resistance, and the steel properties allow thin walls to be used, so that lower weight but fatigue-resistant structures can be made. The chemistry includes carbon, manganese, chrome, molybdenum, silicon, copper. The interaction between the alloys result in a fine grain structure that forms with air-cooling without the traditional “quenching” (fast cooling in water or oil) process. High strength from bainitic phase steel after a series of cold-working operations. Heat-treatment to the 853 specification raises the yield strength for the entire tube, increasing dent and impact resistance.

Gates CenterTrack

Next generation Carbon Drive System. Unique, super-strong, carbon-reinforced polyurethane system that requires no lube and provides a nearly silent ride. CenterTrack is stronger, lighter, more compact, and better at shedding debris than the prior Gates systems.

Dropout Modularity

Patented Kobe 2 Slider Dropouts allow belt-driven or chain-driven or geared configurations

Boost 148 Rear Spacing

New standard to allow better clearance for short seatstays and big tires, plus a better spoke bracing angle for stiffer wheels.

110 mm Front Spacing

Better spoke bracing angle for a stiffer front wheel.

30.9 mm Seattube

Larger diameter seattube than most steel frames allowing compatibility with more dropper posts available in the market.

Tapered Steerer and Headtube

Stiff steering handling up front.

Frame Size Small Medium Large X-Large
Effective Top Tube Length 22.7" 577mm 23.7" 601mm 24.6" 626mm 25.7" 652mm
Seat Tube Length 15" 381mm 17" 432mm 19" 483mm 21" 533mm
Head Angle 67.7°
Seat Angle 73.7°
Chainstay Length Min: 16.8" (427mm), Max: 17.8" (462mm), Shipped: 17.2" (436mm)
Head Tube + Integrated Headset 3.9" 100mm 4.3" 110mm 4.7" 120mm 5.1" 130mm
Stand-over 27.0" 685mm 27.0" 685mm 28.1" 713mm 29.1" 739mm
Bottom Bracket Height 12.2" 301mm
Bottom Bracket Drop 2.0" 52mm
Wheel Base 43.6" 1107mm 44.6" 1133mm 45.7" 1160mm 46.7" 1187mm
Reach 15.6" 397mm 16.5" 420mm 17.4" 442mm 18.3" 466mm
Stack 24.3" 617mm 24.7" 626mm 25.0" 635mm 25.4" 645mm
Rider Height 5'2" - 5'6" 5'7" - 5'10" 5'11" - 6'2" 6'3" - 6'7"
Rider Inseam 28" - 30" 28" - 32" 29" - 34" 35" - 38"
Brand Model Included in Frameset
Fork Fox 34, 120mm, Performance, Grip No
Headset FSA NO.42/ACB Yes
Crank Sram X5 with threaded 73 mm english bottom bracket No
Brakes Sram Level TL, 180 mm front rotor, 160 mm rear rotor No
Belt Gates CenterTrack, 113T, red color No
Front Sprocket Gates CenterTrack, 42T No
Rear Sprocket Gates CenterTrack, 26T No
Wheels Stan's Arch S1, 29", Boost 110x15 front, Boost 148x12 rear No
Tires Schwalbe Nobby Nic 29x2.35 No
Stem Race Face 35mm bar clamp, 60mm length, 6 degree No
Handlebar Race Face Aeffect 35mm clamp diameter, 20mm rise, 760mm width No
Grip ODI Vans Slip-on No
Seatpost Fox Transfer, External routing No
Seat Clamp Spot 33.1 mm clamp diameter No
Saddle WTB Silverado No

Mobile App for Android and iOS

Gates Carbon Drive is the high-tech belt drive offering for bicycles. Interested in key parameters of your drive like speed ratio or center distance? Want to know what belt lengths or sprocket sizes will fit your ride? What about comparing one bike to another to tweak your ratio perfectly? With our calculator and catalog, you can stay on top of the perfect setup for your drive.


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