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 Laguna Seca 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.
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.
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.
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.
|Effective Top Tube Length||22.5" 572mm||23.5" 597mm||24.5" 622mm||25.5" 648mm|
|Seat Tube Length||15" 381mm||17" 432mm||19" 483mm||21" 533mm|
|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||28.0" 713mm||29.1" 739mm|
|Bottom Bracket Height||12.3" 312mm|
|Bottom Bracket Drop||2.4" 61mm|
|Wheel Base||42.9" 1091mm||44.0" 1117mm||45.0" 1143mm||46.0" 1170mm|
|Reach||16.2" 411mm||17.1" 434mm||18.0" 456mm||18.9" 480mm|
|Stack||23.9" 607mm||24.3" 617mm||24.6" 626mm||25.0" 635mm|
|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"|
|Fork||RockShox||Reba RL Boost 110x15, 120mm travel, 51mm offset, 110mm hub spacing|
|Crank||Sram||X5 with threaded 73 mm english bottom bracket|
|Brakes||Sram||Level TL, 180 mm front rotor, 160 mm rear rotor|
|Belt||Gates||CenterTrack, 113T, red color|
|Front Sprocket||Gates||CenterTrack, 42T|
|Rear Sprocket||Gates||CenterTrack, 26T|
|Wheels||Stan's||Arch MK3, 29", Boost 110x15 front, Boost 148x12 rear|
|Tires||Schwalbe||Nobby Nic 29x2.35|
|Stem||Spot||35mm bar clamp, 70mm length, 7 degree|
|Handlebar||Race Face||Aeffect 35mm clamp diameter, 10mm rise, 760mm width|
|Seatpost||Truvativ||Stylo 30.9mm x 400mm|
|Seat Clamp||Spot||33.1 mm clamp diameter|