2018 Alta Redshift MX Dirt Bike Torque Specs

2018 Alta Redshift MX Dirt Bike Torque Specs

Shop parts for a 2018 Alta Redshift MX Dirt Bike.

For 2018, the Alta Redshift MX received a significant price adjustment that made it one of the most accessible electric motocross machines on the market, but the core platform remained a formidable piece of engineering. The same 42-horsepower PMAC motor delivers 120 ft-lbs at the countershaft through a single-speed 3.5:1 reduction, packaged in a forged aluminum chassis that tips the scales at roughly 265 pounds. Keeping the fasteners on this bike torqued to specification is critical — there is no clutch slip or power curve to buffer sloppy connections when every foot-pound of motor torque arrives instantaneously.

Electric Platform — A Different Approach to Maintenance

The 2018 Redshift MX shares the same electric architecture as its predecessor, which means no spark plugs, no oil drain plug, no cylinder head or base bolts, and no flywheel or clutch hub nut. Maintenance on this bike revolves around the chassis, suspension, drivetrain, and braking system. The aluminum bulkhead — a single integrated unit that houses the motor, cooling circuit, inverter, and transmission — sits at the center of everything and requires its own set of torque-critical fasteners.

Wheels & Drivetrain Torque Values

Warp 9 Elite wheels carry the 2018 Redshift MX, with a 21-inch front and 19-inch rear in standard motocross sizing. The single-speed chain drive means every ounce of motor torque flows through the countershaft sprocket, chain, and rear sprocket without any gear multiplication changes. That places heavy demand on drivetrain fasteners, especially during starts and aggressive acceleration out of corners.

After each track session, give the rear axle nut and chain adjusters a quick check. Repeated hard hits from motocross terrain can gradually shift chain tension and axle position if the lock nuts aren’t holding firm.

Chassis & Suspension Hardware

Suspension on the 2018 Redshift MX consists of a WP 4CS fully adjustable closed-cartridge fork and a WP 5018 link-type shock with full adjustability. The forged and welded aluminum frame and cast aluminum swingarm provide lightweight rigidity, but aluminum’s lower thread tolerance compared to steel makes torque accuracy especially important.

A useful habit on the 2018 Redshift MX is to tighten the handlebar clamp bolts evenly in a cross pattern, maintaining a uniform gap between the upper and lower clamp halves on both sides. This distributes clamping force evenly and prevents the bars from shifting during hard landings.

Brake System

The braking package on the 2018 Redshift MX features Brembo calipers at both ends — a two-piston unit with a 260mm rotor in front and a single-piston caliper with a 240mm disc at the rear. Steel-braided lines ensure a firm, consistent lever feel. At 265 pounds with the battery fully charged, the Redshift MX doesn’t ask as much of its brakes as a heavier four-stroke, but the instant acceleration capabilities mean you may be arriving at corners faster than expected.

Motor & Bulkhead Fasteners

At the heart of the 2018 Redshift MX sits the integrated bulkhead — the aluminum core that connects everything from the frame to the swingarm while encasing the motor and its cooling system. This is not a component that gets serviced often, but any time the skid plate is removed for inspection or the motor cover comes off, proper torque on reassembly is vital.

Dry Torque vs. Wet Torque Explained

All torque values listed above assume dry, clean threads with no lubrication present. This is the standard “dry torque” condition. When you apply oil, grease, anti-seize, or thread-locking compound to bolt threads, you change the friction coefficient and create a “wet torque” scenario. The practical effect is that the same torque wrench reading generates 15–25% more clamping force on a lubricated fastener than on a dry one. For the aluminum-heavy Redshift MX, this difference matters — excess clamping force strips threads and cracks castings. If a bolt requires thread locker, reduce the applied torque by roughly 15–20% from the dry specification.

Consequences of Incorrect Torque

Over-torquing on the 2018 Redshift MX is particularly risky because so many fasteners thread into aluminum. Stripped threads in the frame or bulkhead are expensive to repair and may require replacing the entire casting. Warped brake rotors from unevenly tightened disc bolts introduce pulsation that degrades stopping performance.

Under-torquing carries its own risks. A loose countershaft sprocket nut can damage the output shaft. Insufficiently tight suspension linkage bolts allow play that accumulates and creates vague, unpredictable handling. Loose fork clamp bolts let the tubes creep through the clamps, changing ride height and steering geometry in ways that are difficult to diagnose on the fly.

Thread Locker Usage on the 2018 Redshift MX

Medium-strength (blue) thread locker belongs on the following fasteners:

• Rear sprocket bolts
• Brake disc bolts (front and rear)
• Suspension linkage bolts
• Subframe bolts
• Skid plate fasteners

Avoid applying thread locker to axle nuts, swingarm pivot bolts, or any fastener that relies on high clamping force and frequent removal. High-strength (red) thread locker should be reserved for semi-permanent applications where heat will be used for disassembly.

Torque Wrench Selection

For comprehensive coverage of every fastener on the 2018 Alta Redshift MX, you need a torque wrench that spans approximately 5 Nm to 100 Nm. A click-type wrench is the most practical everyday choice, offering a clear tactile and audible signal at the preset value. A beam-type wrench costs less and never needs calibration, making it a solid backup or budget option. For the highest precision on small fasteners — disc bolts, master cylinder hardware, motor cover bolts — a digital wrench with its real-time readout is hard to beat. Keep both a 1/4-inch and a 3/8-inch drive wrench in your toolkit and you will be equipped for every bolt on the bike.

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Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.