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The 2011 Jamis Dakar XCT 4 is a top of the line full suspension mountain bike that features a same super light 1950 gram frame.

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Pros

Fox 32 Talas RLC fork

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American Classic All Mountain Disc wheels

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Frame weight = 1950 grams

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Fox Float RP23 BV shock

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Cons
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The 2011 Jamis Dakar XCT 4 is a top of the line full suspension mountain bike that shares the same super light 1950 gram frame with the Dakar XCT 3, albeit in a Pearl White/Carbon color. The new 2011 bikes from Jamis feature a 1 1/8” - 1.5” tapered head tube to keep the frame light while increasing stiffness and strength at the crown, while the asymmetrical chainstays achieve greater tire clearance. The headset and tires are also the same as those found on the XCT 3, while the fork, wheels and components have all been upgraded. MP4 linkage suspension system offers a fully active 130mm of travel and is controlled by a Fox Float RP23 BV rear shock. FOX’s 32 Talas RLC fork delivers 100, 120 and 140mm travel options, all of which are easily accessed on the fly depending on riding conditions. Both the SRAM XO rear derailleur and XO brakes are some of the lightest on the market, and the lightweight American Classic wheels are accompanied by AC 130 and 225 hubs which are also some of the lightest on the market. Geax AKA is a versatile tire for many types of terrain that has lower profile knobs in the center for low rolling resistance, and side knobs directly derived from their aggressive Gato tire for grip.

Features

Frame

  • Full high modulus carbon main frame, stays and bell crank, Dyad XC Ultra lay-up, 130mm travel mp4 linkage design, SST size-specific tube diameters, tapered head tube, asymmetrical chainstays, stainless steel chainstay protector, cartridge bearing pivots, Fox Float RP23 BV shock with 10mm hardware, replaceable derailleur hanger

Fork

  • Fox 32 Talas RLC with F.I.T.damper, air spring, external rebound damping, 15mm thru-axle, tapered alloy steerer, 100-140mm adjustable travel

Headset

  • FSA Orbit 1.5 Zero-Stack internal cup, for tapered head tube, 30mm shim stack

Wheels

  • American Classic All Mountain Disc wheels, AC130 with 15mm thru-axle front & AC225 with 12 x 135mm thru-axle rear hubs, Maxle Lite rear axle

Tires

  • Geax Gato 2.3” front and AKA 2.2” rear, folding

Derailleurs

  • SRAM XO mid cage rear and SRAM XO 34.9mm top pull front

Shiftlevers

  • Sram XO trigger with Matchmaker clamp, 10-speed

Chain

  • KMC X10SL

Cassette

  • SRAM PG-1070, 10-speed, 12-36

Crankset

  • SRAM XO BB30, 39/26 170mm (15”), 175mm (17-21”)

BB Set

  • SRAM BB30 integrated

Pedals

  • N/A

Brakeset

  • Avid XO hydraulic disc brakes with 185mm front & 160mm rear rotors

Handlebar

  • Ritchey Pro Rizer, 31.8 x 20mm rise x 670mm

Stem

  • Ritchey Pro 4-Axis, 6º rise x 90mm(15”), 100mm (17”), 110mm (19”), 120mm (21”)

Grips

  • Jamis Lock-On, dual density

Seat Post

  • Crank Brothers Joplin 4R with remote, 100mm adjustable height range, 31.6 x 398mm

Saddle

  • WTB Vigo Team Carbon, Nicro tubular rails

Sizes

  • 15”, 17”, 19”, 21”

Color

  • Pearl White/Carbon

Weight

  • 26.25 lbs
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