2017 Jamis Komodo 27.5+ Expert
2017 Jamis Komodo 27.5+ Expert
A 27.5x3" tire measures out to a 29" diameter and a 26x3" tire measures out to a 27.5" diameter. COmbining whem with a 40mm rim, results in the ultimate combination of traction, roll-over and versatility without being too heavy, too bouncy, too tall or feeling letharigic on the trail.
Tapered Head Tube
Riding fast 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 full 1.5" tapers 1 1/8" to 1 1/2" head tube serves up a significant increase in rough terrain tracking and stability without much of a weight penalty compared to a standard 1 1/8" systems
The rear wheel tucks in with short chianstays. With a 12x148 rear hub, you've got a stiff and responsive rear end.
Outboard Chain Line
A 12x148 rear hub with 3mm offset chain rings minimizes the chance of chain to tire contact with short chainstays and "mid-fat" tires without compromising and pedaling efficiency to a wider q-factor.
Why Thru Axles?
Securing the rear wheel to the frame by threading a 12mm axle into the rear drop-outs is not only safer, its 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 and handling significantly. It also puts less stress on the fork's internals, improving for durability and performance. The hub drop puts provide a self-centering feature for the wheel for fast, easy installation.
Forged Bottom Bracket Yoke
A one-piece bottom braket shell and drive-side chainstay yoke provide a strong and lightweight solution for the potential clearance issues of 3" tires and double chainrings.
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. WTB TCS rims feature a tubeless UST "On-Ramp" profile providing a consistent fit between the rim and the tire for easy installation and inflation
180mm Front Rotors
Bigger wheels and tires generate more rotating mass and traction once they are up to speed. So it only makes sense to use larger rotors to help control that larger wheel in the most efficient manner possible. Sure, 160mm rotors will stop the bike. But when you're riding like every second counts, braking for the shortest time possible while keeps the bike under control is the goal. And a larger 180mm rotor up front let's you do this.
Seat and Steering Platform
A 35mm seat tube with 31.6mm seat post assures the stiffest possible pedaling and steering platform, with a sloping top tube for low stand-over.
Frame: Triple-butted 6061 aluminum, 1.5-1 1/8" tapered head tube, post mount disc brakes, 12x148mm thru axle drop-outs, High Direct Mount (HDM) front derailleur with front-pull internal cable routing, internal dropper post routing, replaceable derailleur hanger, Formula axle
Fork: Rock Shox Recon Silver RL 29/27.5+, Solo Air Spring, external rebound, lockout adjust, 32mm stanchions, 15x110mm axle, tapered aluminum steerer, 120mm travel
Headset: FSA Orbit 1.5 Zero-Stack internal cup, 8mm cone spacer
Wheels: WTB Scraper i40 TCS tubeless 27.5" rims, Formula sealed bearing 15x110mm front and 12x148mm rear 6-bolt disc hubs, stainless spokes
Tires: WTB Trail Boss, 27.5 x 3.0", TCS tubeless
Derailleurs: SRAM NX, 11-speed
Shift Levers: SRAM NX, 1x11-speed
Chain: KMC X11-1, 11-speed
Cassette: SRAM 1130, 11-speed, 11-42T
Crankset: SRAM NX, 32T, 170mm (15"), 175mm (17-21")
BB Set: SRAM GXP
Brakeset: Shimano deore M506 hydraulic disc, 180mm front and 160mm rear RT56 6-bolt rotors
Handlebar: Ritchey Trail 2X, 31.8x 9 degree x 720mm x +/- 5mm rise
Stem: Ritchey Trail, 60mm (15"), 70mm (17"), 80mm (19"), 90mm (21")
Grips: Jamis Lock-on
Seat Post: KS eTen Integra, 100mm travel, Southpaw remote
Saddle: WTB Volt Comp