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Mach 4 SL V4 Pro XT Di2 Mountain Bike
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Race-tuned precision in the Mach 4 SL V4 XT Di2 Mountain Bike
What Our Gearhead® Experts Are Saying:
"I’ve always liked Shimano’s Di2 system for how consistent and precise it feels, and on this bike it really shines. The shifting is instant and reliable, even under load, and the Fox Performance suspension keeps the ride smooth without sacrificing efficiency. It climbs like a true XC race bike but still feels confident when the trail gets technical. For riders who want electronic precision with race-ready geometry, this build hits the mark."
When we are chasing PRs on punchy climbs or lining up for local XC races, the Mach 4 SL V4 XT Di2 Mountain Bike from Pivot delivers the sharp, responsive feel we expect from a modern race machine. Built around Pivot’s hollow-core carbon frame and dw-link suspension platform, it transforms every pedal stroke into forward momentum while staying composed on technical terrain. It feels fast the moment we roll out of the parking lot.
Fox Performance suspension balances efficiency and control with a 120mm Fox Performance 34 SL fork up front and a Fox Performance Float rear shock delivering 100mm of travel in the rear. Shimano’s XT Di2 M8200 12-speed drivetrain provides crisp, electronic shifting and a wide 10-51t range for steep climbs and fast flats alike. DT Swiss X1900 wheels paired with Maxxis Rekon Race 29 x 2.4in tires keep rolling resistance low while maintaining dependable grip when the course turns loose or rough.
Heads up - We do our best to keep bike specs and images current, but occasional component changes can happen without warning-and sometimes the photos might not show the exact build you'll receive. If you want to double-check the details, our Gearheads are always here to help.
Details
- Built for cross-country racing and aggressive singletrack
- Hollow-core carbon frame with dw-link rear suspension
- Fox Performance 34 SL fork with 120mm travel
- Fox Performance Float rear shock with 100mm travel
- Shimano XT Di2 M8200 12-speed electronic drivetrain
- DT Swiss X1900 29in wheelset with Boost spacing
- Maxxis Rekon Race 29 x 2.4in tires for fast rolling traction
- Shimano XT 2-piston hydraulic disc brakes for controlled stopping power
- Item #PIV1X5N
- Frame Material
- Hollow-core carbon
- Suspension
- dw-link
- Rear Shock
- Fox Performance Float
- Rear Travel
- 100mm
- Fork
- Fox Performance 34 SL GRIP
- Front Travel
- 120mm
- Headset
- Integrated Pivot Precision Sealed
- Shifters
- Shimano XT Di2 M8200 I-Spec EV
- Rear Derailleur
- Shimano XT Di2 M8200 SGS (12-speed)
- ISCG Tabs
- ISCG-05
- Crankset
- Race Face Aeffect R
- Chainring Sizes
- 34t
- Crank Arm Length
- [x-small - small] 170mm [medium - x-large] 175mm
- Bottom Bracket
- threaded
- Cassette
- Shimano XT M8200
- Cassette Range
- 10-51t
- Chain
- Shimano CN-M8100 (12-speed)
- Brakeset
- Shimano XT M8200 2-piston
- Brake Type
- hydraulic disc
- Rotors
- Shimano RT-86 (180mm/160mm)
- Handlebar
- Phoenix Team Flat
- Handlebar Rise
- 0mm
- Handlebar Sweep
- [backsweep] 9 degree
- Handlebar Width
- 760mm
- Grips
- Phoenix Factory Lock-On
- Stem
- Phoenix Team XC Trail
- Saddle
- WTB Pro Volt Narrow
- Seatpost
- Pivot Dropper
- Wheelset
- DT Swiss X1900
- Hubs
- DT Swiss 370 Boost
- Front Axle
- 15 x 110mm Boost
- Rear Axle
- 12 x 148mm Boost
- Tire Clearance
- up to 2.4in
- Tires
- Maxxis Rekon Race TR EXO
- Tire Size
- 29 x 2.4in
- Pedals
- not included
- Claimed Weight
- 25lb (11.3kg)
- Activity
- cross-country, trail
- Manufacturer Warranty
- limitd lifetime
Mach 4 SL
Faster Where It Matters
Engineered for modern XC with size-specific carbon tuning and dw-link precision.
Pedal Efficiency. Locked Traction
dw-link balances anti-squat with small-bump compliance.
Power transfers forward without sacrificing grip
Clean Cockpit Control
Dual cable ports simplify routing and reduce noise. Wireless builds deliver a fully uncluttered front end.
Essentials. Secured Inside
Integrated downtube storage keeps tools off your body. Includes two bags and magnetic quick-link holder.
Shop the 2026 Mach 4 SL
Performance Redefined Since 2007
Pivot Cycles was founded in 2007 by industry veteran Chris Cocalis with a simple goal: build the best mountain bikes possible for riders who demand more from their ride. Drawing on decades of experience and a passion for engineering excellence, Pivot quickly became known for premium carbon frames, innovative suspension tuning, and bikes that excel across trail, enduro, downhill, and e-mountain categories. Based in Tempe, Arizona, Pivot combines precision design, rigorous testing on real terrain, and a rider-first philosophy to create machines that climb efficiently, descend with confidence, and elevate the entire riding experience. Rooted in community and a love of the sport, Pivot supports riders everywhere who know that the bike is just the beginning.