Rugged Rock Harley-Davidson®
Blast ZR 4000

Blast ZR 4000


Single-Cylinder 2-Stroke EFI Engine

With an industry-first design that’s compact and lightweight (under 50 pounds), this EFI engine brings 65-hp (397cc) performance to every ride. A 3-stage exhaust valve system takes this power to the next level, delivering improved throttle response and better overall engine performance. As a liquid-cooled engine, it thrives in low-snow conditions – and a counter balance shaft eliminates most engine vibration. The result—a lightweight-but-mighty power source that fuels a ride like no other.


With a full 10.7 inches of travel, this responsive rear suspension soaks up any bump on the trail to keep the ride stable and smooth.

Lighter Weight, Mid-Sized Chassis

Easy handling and maneuverability is what this ride is all about, with a size that lets more riders capture more thrills.

Electric Start

The convenience and ease of electric start lets you get up and moving right away.


An unprecedented frame design combines with an unrivaled engine to deliver an action-packed ride that's easier to handle.


A lower-profile, race-ready windshield gives you a new level of visibility.


Quickly access vehicle information on one easy-to-read display.


Engine Type 4000 Series, 2-Stroke
Displacement 397cc
Cooling Liquid
Cylinders 1
Bore x Stroke 85 x 70 mm
Lubrication Electronic Injection
Ignition Digitially Controlled CDI
Engine Starter Output 270W @ 3000 RPM
Fuel Delivery Electronic Fuel Injected (EFI)
Exhaust APV with Tuned Pipe, Pipe Sensor, Manifold and Stainless Steel Muffler
Fuel Capacity 11.7 gal.
Coolant System Capacity 4.3 qt.
Minimum Octane 91
Oil System Capacity 3.25 qt.
Drive Clutch CVTech Trailbloc
Driven Clutch CVTech Invance
Drive System Arctic Drive System
Brakes Stealth Hydraulic Master Cylinder w/ Lightweight Caliper
Clutch Calibration 0-5,000 ft.
Gearing 19/50
Chain Pitch 90
Track Drive Sprocket 9 Tooth, 2.52 pitch, Involute
Reverse Push-Button Engine
Front Suspension Arctic Mountain Suspension (AMS)
Ski Shocks Hydraulic Twin Tube
Sway Bar N/A
Front Travel 7.2 in.
Rear Suspension Slide-Rail, Dual Shock and Adjustable Torsion Springs
Front Track Shock Hydraulic Twin Tube
Rear Track Shock Hydraulic Twin Tube
Rear Travel 10.7 in.
Overall Chassis Length 115 in.
Overall Chassis Width 44-45 in.
Overall Chassis Height 38 in.
Track Type Standard
Track Width 14 in.
Track Length 121 in.
Lug 1 in.
Pitch 2.52 in.
Ski Stance 37.5-38.5 in. Adjustable
Ski Type/Width Trail - 6 in.
Runner Type Single Runner
Type of Gauge Digital
Speedometer Digital
Tachometer Digital
Odometer Digital
Fuel Digital
Oil Indicator Light
Coolant Indicator Light
Clock N/A
Battery Voltage N/A
Altimeter N/A
Hours Digital
Color Blue/White
Heat Exchanger Front/ Long Tunnel
Starter Electric - Key
Handlebars Hooked with Grab Handle, 4.5 in. Riser
Lighting Halogen 1-Bulb
Seating Mid-Size
Additional Accessories Front Bumper, Goggle Holder, Handguards, Ice Scratchers, Mirrors, Rear Rack, Rear Storage, Sno Pro Brake Lever, Tow Hitch
Standard Accessories Hand & Thumb Warmer, Tether Switch
Windshield 4 in. Low-Height
Blue & White
Dynamic Charcoal & Medium Green