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Marin Bikes

Rift Zone Carbon 29 2

2021 Marin Rift Zone 29 Carbon 2 profile.

See this bike in a different color:

  • Suspension: Fox Performance 34 Float / Fox Float DPX2
  • Wheel Size: 29"
  • Frame: Carbon Fiber
  • Size Range: S, M, L, XL

FAST PACED, EPIC RIDES

PUSHING THE ENVELOPE UP AND DOWN THE TRAIL

CHASING PERSONAL RECORDS

The Rift Zone is our most speed oriented MultiTrac bike, created for the rider looking for the speed and roll over capabilities of 29” wheels in a trail capable package. Long, low, and slack trail geometry is more aggressive than an XC race bike for more control at top speed, and more fun while chasing seconds.

Key upgrades from Rift Zone Carbon 29 1:

  • Fox Performance 34 Float/Float DPX 2 suspension
  • Shimano SLX/XT drivetrain
  • Shimano SLX 4-piston brakes
  • FSA Gradient crankset

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Specifications

  • Frame

    All New Unidirectional Carbon Fiber Front Triangle, Series 4 Alloy Rear End, 29” Wheels, 125mm Travel, MultiTrac Suspension Platform, 148x12mm Boost Thru-Axle, 73mm Threaded BB w/ ISCG05 Tabs

  • Front Suspension

    Fox Performance 34 Float, 130mm Travel, 3-Position Micro Adjust Compression Adjustment, Rebound Adjustment, 110x15mm Kabolt Axle, 44mm Offset

  • Rear Suspension

    Fox Float DPX2, Performance Series, EVOL Air Spring, 3-Position Compression Adjustment, Rebound Adjustment, Custom Tune, 210x50mm, M8x30mm Top, M8x25mm Bottom

  • Rims

    Marin Aluminum Double Wall, 29mm Inner, Welded Joint, Disc Specific, Tubeless Compatible

  • Hub, Rear

    Shimano, Microspline 148x12mm, Centerlock Disc, 32H

  • Hub, Front

    Shimano, 110x15mm, Centerlock Disc, 32H

  • Spoke, Nipples

    14g Black Stainless Steel

  • Tires

    Front: Maxxis Minion DHF 29x2.5”, 3C MaxxTerra, EXO+, Tubeless Compatible Rear: Maxxis Minion DHR II 29x2.4”, 3C Maxx Terra, EXO+, Tubeless Compatible

  • Derailleur, Rear

    Shimano XT, 12-Speed, SGS

  • Derailleur, Front

    -

  • Shift Lever

    Shimano SLX 12-Speed, I-Spec EV

  • Crankset

    FSA Gradient, Modular 1x, 32T Direct Mount Chainring, MegaTooth Technology, Mego EXO Spindle, Boost Spacing

  • Bottom Bracket

    MEGAEVO BB, 73mm BSA Threaded

  • Chain

    KMC X-12 Silver and Black

  • Cassette

    Shimano SLX M7100 Cassette, 12-Speed, 10-51T

  • Brake, Front

    Shimano SLX, 4-Piston Hydraulic Disc, Brake 203mm Rotor

  • Brake, Rear

    Shimano SLX, 4-Piston Hydraulic Disc Brake, 180mm Rotor

  • Brake Levers

    Shimano SLX Hydraulic, I-Spec EV

  • Handlebar

    Deity Skyline Bar, 787mm Width, 25mm Rise

  • Stem

    Marin 3D Forged Alloy, 35mm

  • Grips

    Marin Single Clamp Locking

  • Headset

    FSA No 42/47, Sealed Cartridge Bearings, 1 1/8" x 1 1/2”

  • Seatpost

    X-Fusion Manic with PNW Loam Lever, Size S 125mm Travel, Size M and L 150mm Travel, Size XL 175mm Travel, 30.9mm

  • Saddle

    Marin Trail Speed Concept Pro

  • Pedals

    -

  • Extras

    Bolt-On Thru-Axle

Specifications, pricing, and availability are subject to change without notice.

Geometry

Rift Zone Carbon 29 2 geometry diagram
S M L XL
Stack 602.6 607.15 611.7 616.25
Reach 430 455 480 515
Headtube Angle 65.5° 65.5° 65.5° 65.5°
Headtube Length 100 105 110 115
Seattube Angle 76° 76° 76° 76°
Seattube Length 390 400 425 430
Toptube Effective 580.24 606.36 632.51 668.65
BB Height 344 344 344 344
BB Drop 34 34 34 34
Chainstay 425 425 425 425
Wheelbase 1158.92 1186 1213 1252
Standover Height 643 650 659 662
Fork Offset 44 44 44 44
Seatpost Diameter 30.9 30.9 30.9 30.9
Handlebar Width 780 780 780 780
Stem Length 35 35 35 35
Crank Length 170 175 175 175

All lengths in millimeters

Suspension Setup

REAR SHOCK SETUP

Recommended Sag = 30%/15mm

Step 1: Set correct pressure in rear shock.

Step 2: Sit on the bike and cycle the suspension (*with correct riding gear).

Step 3: Reset O-ring and sit on the bike, DO NOT BOUNCE, carefully step off.

Step 4: Measure sag (from o-ring to seal of shock), If it does not match the bike’s recommended sag in millimeters repeat process.

Step 5: Adjust rebound setting to ensure proper control.

FORK SETUP

Marin recommends that all bikes front and rear suspension feel balanced

Step 1: After rear sag is set follow the recommended pressure from the fork manufacture.

Step 2: Bounce evenly up and down on the bike, cycling the suspension up and down to make sure both front and rear suspension feel balanced, if the front does not match the rear add or release pressure.

Step 3: Once the bike feels balanced adjust the rebound damping to ensure proper control.

Fox Float DPX2

Rider weight and shock setup
LBS KG PSI
120 54 125
130 59 132
140 64 140
150 68 150
160 73 160
170 77 170
180 82 180
190 86 192
200 91 210
210 95 220
220 100 230
230 104 250
240 109 260
250 113 280
260 118 300
270 122 310

Reviews

Modern geometry for maximum fun.

Marin's Rift Zone Carbon 2 is a mid-range bike with a lot to love.

Made for fun is an understatement

Essentially the Rift Zone takes some big bike numbers and crafts them into a shorter travel trail bike that should have no issues sticking its nose into enduro territory.

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