Jamis 2018 Jamis Roughneck



2018 Jamis Roughneck

ID#: 16374143

Jamis

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Overview

AIR FORMING

The fork and frame tubes on the Roughneck are made by SPF Air Forming. SPF is carried out at high air temperatures, where the tube structure is in its most ‘plastic’ and formable state. This allows more complicated shapes to be produced that cannot be made using traditional forming techniques. For the fork, air forming produced a one-piece lower leg and crown eliminating the need for welding at this common joint. The result: more optimized shapes and less weight.

FRAME CLEARANCES

The 12x197mm rear hub and 100mm wide bottom bracket shell combination provide clearance for a double chainring set-up and up to a 4.5” rear tire. The Roughneck’s air formed fork and 15x150mm front hub provide clearance for up to a 5” front tire.

WHY THRU AXLES?

Securing the rear wheel to the frame by threading a 12mm axle into the rear drop-outs is not only safer, it’s stiffer. The rear wheel tracks directly in line with the frame, for more precise handling, so you can go faster with more confidence. The increase in stiffness of a 15mm fork axle improves steering & handling significantly. The hub drop outs provide a self centering feature for the wheel for fast, easy installation.

READY TO LOAD

The Roughneck’s frame features rear rack eyelets and enough cargo/water cage mounts for the option to load up all the gear you may possibly need out there. Internal cable housing allows for uninterrupted shifting performance when using a frame bag.

TUBELESS

Benefits of a tubeless set-up are reduced rotating weight and the ability to use lower inflation pressures for greater traction without the risk of pinch flats.

TAPERED HEAD TUBE AND FORK STEERER

Riding with control requires steering precision, which starts with the front of the bike. Stiffening this area results in less wheel deflection, more wheel control. A tapered 1 1 /8” to 1 1 /2” head tube and steerer serves up a significant increase in rough terrain tracking and stability without much of a weight penalty compared to standard 1 1 /8” systems since the steer tube wall thickness can be reduced. Adding a 15mm QR thru-axle hub/fork interface takes steering precision over the top.


Specifications

 

Frame Triple-butted 6061 air-formed aluminum, 1.5 - 1 1/8” tapered head tube, 12x197mm rear hub spacing, post mount disc brakes, 100mm bottom bracket shell, rack mounts, internal cable routing, dropper seat post routing, replaceable derailleur hanger
Fork Triple-butted 6061 air-formed aluminum, suspension corrected, tapered steerer, 15x150mm hub spacing, post-mount disc, rack/bottle mounts
Headset FSA Orbit, Alloy cups
Wheels Sun Ringle MuleFut 80 Comp, STR Tubeless Ready, 15x150 Front hub, 12x197 Rear hub, Wheelsmith spokes, Brass nipples
Tires Kenda Juggernaut Sport, 26 x 4.5", 60 tpi, folding
Derailleurs Shimano SLX Shadow Plus rear
Shift levers Shimano SLX, 1x11-speed
Chain KMC X11-1 EPT (Anti-Rust), 11-speed
Cassette Shimano M7000, 11-speed, 11-46T
Crankset Race Face Ride, 30T, 170mm (15”), 175mm (17-21”)
BB Set Race Face External
Pedals MTB alloy platform
Brakeset TRP Spyke 2-piston Mechanical, 180mm front & 160mm rear 6-bolt rotors
Handlebar Race Face Ride, 740mm x 25mm rise
Stem Race Face Ride, 70mm (15"/17"), 80mm (19"/21")
Grips Jamis Lock-On
Seat Post Race Face Ride, 31.6 x 400mm
Saddle WTB Volt Sport
Sizes 15”, 17”, 19”, 21”
Color Flat Ink
Weight 33.25 lbs

 


Sizing

SIZE TOP EFFECTIVE HEAD ANGLE SEAT ANGLE CHAIN STAY WHEEL BASE BB DROP HEAD TUBE STANDOVER STACK REACH
15 22.8/580 69˚ 73˚ 17.9/457 44.0/1118 2.4/60 3.9/100 29.3/744 23.1/586 15.8/401
17 23.6/600 69˚ 73˚ 17.9/457 44.8/1139 2.4/60 4.3/110 30.7/779 23.5/596 16.5/418
19 24.4/620 69˚ 73˚ 17.9/457 45.7/1160 2.4/60 4.9/125 32.1/816 24.0/610 17.1/434
21 25.2/640 69˚ 73˚ 17.9/457 46.5/1181 2.4/60 5.5/140 33.5/850 24.6/624 17.7/449