Rift Zone 29" Carbon XR

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- Price: $4,779.00 (USD)*
- Suspension: Fox Performance Elite Float 36 / Fox Factory Series Coil
- Wheel Size: 29"
- Frame: Carbon Fiber
- Size Range: S, M, L, XL
- Fox Performance Elite 36 Float fork w/140mm travel
- Float Factory Series Coil rear suspension
- Shimano XT 4-piston brakes
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.
Specifications
Frame
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 36 Performance Elite Float, 140mm Travel, GRIP 2 Damper, 110x15mm Kabolt Axle, 44mm Offset
Rear Suspension
Fox Factory Series Coil, Coil Spring, Climb Switch, Rebound & Compression Adjustment, Custom Tune, 210x50mm, M8x30mm Top, M8x25mm Bottom, Spring rates: S = 350lb, M = 400lb, L = 450lb, XL = 500 lb
Rims
Marin Aluminum Double Wall, 29mm Inner, Welded Joint, Disc Specific, Tubeless Compatible
Hub, Rear
Forged Alloy, 148x12mm,Disc, 32H, MS Freehub Body
Hub, Front
Forged Alloy, 148x12mm,Disc, 32H, MS Freehub Body
Spoke, Nipples
14g Black Stainless Steel
Tires
Maxxis Assegai 29x2.5”, 3C MaxxGrip, EXO+, Tubeless Compatible
Derailleur, Rear
Shimano XT, 12-Speed, SGS
Derailleur, Front
-
Shift Lever
Shimano SLX, 12-Speed, SL-7100R
Crankset
FSA Gradient, Modular 1x, 32T Direct Mount Chainring, MegaTooth Technology, MegaExo Spindle, Boost Spacing
Bottom Bracket
MEGAEVO BB, 73mm BSA Threaded
Chain
KMC X-12 Silver and Black
Cassette
Shimano Deore M6100, 12-Speed, 10-51T
Brake, Front
Shimano XT, 4-Piston Hydraulic Disc, 203mm Rotor
Brake, Rear
Shimano XT, 4-Piston Hydraulic Disc, 180mm Rotor
Brake Levers
Shimano XT Hydraulic, I-Spec EV
Handlebar
Marin Trail, 35mm Clamp, 7000 Alloy Bar, 800mm Length, 20mm Rise, 5 Degree Up, 8 Degree Back
Stem
Marin CNC, 35mm Length, 35mm Bar Bore
Grips
Marin Grizzly Lock On
Headset
FSA No 42/47, Sealed Cartridge Bearings, 1 1/8" x 1 1/2”
Seatpost
X-Fusion Manic, 1x Composite Remote, Size S 125mm Travel, Size M and L 150mm Travel, Size XL 170mm 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

S | M | L | XL | |
---|---|---|---|---|
Stack | 605.64 | 610.32 | 614.92 | 619.6 |
Reach | 425.72 | 450.74 | 475.84 | 510.97 |
Headtube Angle | 65.1° | 65.1° | 65.1° | 65.1° |
Headtube Length | 100 | 105 | 110 | 115 |
Seattube Angle | 76° | 76° | 76° | 76° |
Seattube Length | 390 | 400 | 425 | 430 |
Toptube Effective | 576.72 | 602.91 | 629.16 | 665.44 |
BB Height | 347 | 347 | 347 | 347 |
BB Drop | 31 | 31 | 31 | 31 |
Chainstay | 425 | 425 | 425 | 425 |
Wheelbase | 1164.899 | 1191.97 | 1219.12 | 1259.11 |
Standover Height | 648 | 655 | 664 | 667 |
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: Use your finger to slide the rubber bump stop (on the shock shaft) up to the seal head.
Step 2: Sit on the bike and put all of your weight on the bike. Do *not* cycle the suspension.
Step 3: Measure sag (from shock body to bumper), If it does not match the bike’s recommended sag in millimeters repeat process, and replace coil spring with appropriate rate.
Step 4: 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.
LBS | KG | COIL LB/IN |
---|---|---|
120 | 54 | 300 |
130 | 59 | 300 |
140 | 64 | 300 |
150 | 68 | 350 |
160 | 73 | 350 |
170 | 77 | 350 |
180 | 82 | 400 |
190 | 86 | 400 |
200 | 91 | 400 |
210 | 95 | 450 |
220 | 100 | 450 |
230 | 104 | 450 |
240 | 109 | 500 |
250 | 113 | 500 |
260 | 118 | 500 |
270 | 122 | 500 |
Reviews
This is still a really fun bike, and it would suit anyone whose riding involves mixing up steep fall-line trails with less extreme stuff.
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