2018 Alta Redshift EX Dirt Bike Torque Specs

Shop parts for a 2018 Alta Redshift EX Dirt Bike.

Owning a 2018 Alta Redshift EX means riding one of the most innovative electric enduro machines ever produced. With its 40-horsepower PMAC motor delivering 120 ft-lbs of torque through a single-speed 3.5:1 gear reduction, the Redshift EX is built to handle everything from tight singletrack to street commuting. That kind of versatile performance demands fasteners that are torqued precisely — no more, no less. Whether you’re swapping wheels after a weekend on the trail or tightening down suspension components following a linkage service, knowing your torque specifications keeps the 2018 Redshift EX safe, reliable, and ready to ride.

What Makes the Redshift EX Different Under the Wrench

Because the 2018 Alta Redshift EX runs a water-cooled permanent magnet AC motor instead of a combustion engine, you won’t find traditional torque specs for spark plugs, oil drain plugs, cylinder head bolts, or flywheel nuts. There is no clutch basket, no valve cover, and no exhaust system to worry about. Instead, your attention shifts to the bulkhead assembly — the forged and welded aluminum chassis core that serves as both the motor housing and the structural spine of the bike. The Redshift’s permanent mold cast swingarm, WP suspension components, Brembo brake calipers, and Warp 9 Elite wheels all rely on properly torqued metric fasteners to maintain handling precision and rider safety. Treat every bolt on this bike with the same care you would on any high-performance off-road machine — if not more, given the instant torque delivery the motor is capable of.

Drivetrain & Wheels

The Redshift EX uses a 21-inch front and 18-inch rear wheel setup on Warp 9 Elite rims, paired with a single-speed drivetrain. Chain tension, axle security, and sprocket fastening are critical maintenance points, especially after trail rides where impacts can loosen hardware.

Fastener Torque (Nm) Torque (ft-lbs)
Front Axle Nut 45 33
Rear Axle Nut 100 74
Front Sprocket Nut 80 59
Rear Sprocket Bolts 25 18
Chain Adjuster Lock Nuts 18 13

On the 2018 Redshift EX, the rear sprocket bolts benefit from medium-strength thread locker to prevent loosening under the constant chain load and vibration transferred from trail riding. Always verify the rear axle nut torque after adjusting chain slack.

Suspension & Chassis Fasteners

The 2018 Redshift EX rolls on a WP 4CS fully adjustable closed-cartridge fork up front and a WP custom reservoir link-type shock at the rear. These are high-quality, fully adjustable components, and their mounting hardware must be torqued with precision to maintain suspension geometry. The forged aluminum frame and cast swingarm are light but rely on proper bolt tension to handle the stresses of aggressive off-road riding.

Fastener Torque (Nm) Torque (ft-lbs)
Swingarm Pivot Bolt 80 59
Upper Triple Clamp Fork Pinch Bolts 20 15
Lower Triple Clamp Fork Pinch Bolts 18 13
Handlebar Clamp Bolts 15 11
Rear Shock Upper Mounting Bolt 50 37
Rear Shock Lower Mounting Bolt 50 37
Linkage Bolts (Connecting Rod) 40 30
Subframe Mounting Bolts 25 18

Fork pinch bolts on the 2018 Redshift EX should be tightened in a specific sequence — lower clamp first, then upper clamp — after seating the front axle. This allows the fork tubes to self-align and prevents binding. The handlebar clamp bolts should be tightened in a cross pattern to maintain even clamping pressure across the bar.

Brake System Torque Specifications

Brembo brakes on the 2018 Redshift EX provide exceptional stopping power with a two-piston caliper and 260mm rotor up front and a single-piston caliper with a 219mm rotor at the rear. Steel-braided brake lines deliver consistent feel and feedback. Keeping brake hardware tight is non-negotiable — loose caliper bolts or disc fasteners can lead to catastrophic brake failure.

Fastener Torque (Nm) Torque (ft-lbs)
Front Brake Caliper Mounting Bolts 30 22
Rear Brake Caliper Mounting Bolts 25 18
Front Brake Disc Bolts 10 7
Rear Brake Disc Bolts 10 7
Front Brake Master Cylinder Clamp Bolts 10 7
Rear Brake Master Cylinder Mounting Bolts 10 7

Brake disc bolts should always receive medium-strength thread locker on the 2018 Redshift EX. Tighten them in a star pattern, working gradually to full torque to avoid warping the rotor. This is especially important on the front 260mm disc, where uneven clamping pressure can cause pulsation during hard braking.

Bulkhead & Motor Housing

The Redshift EX’s bulkhead is the structural core of the motorcycle — it integrates the motor casing, cooling circuit, inverter housing, and transmission case into one component. The frame, swingarm, rear suspension, and airframe all connect directly to this hub. Because the bulkhead carries both structural loads and drivetrain forces, its fasteners require accurate torquing.

Fastener Torque (Nm) Torque (ft-lbs)
Motor Cover Bolts 10 7
Bulkhead-to-Frame Mounting Bolts 40 30
Skidframe / Skid Plate Bolts 15 11

Understanding Dry Versus Wet Torque

Most torque specifications for the 2018 Redshift EX assume dry, clean threads — meaning no oil, grease, or thread locker on the bolt or in the threaded hole. This is referred to as “dry torque.” When a lubricant or thread-locking compound is present on the fastener, friction drops, and the same amount of applied torque produces significantly more clamping force. That condition is called “wet torque.” If a spec calls for dry torque and you apply it to a lubricated bolt, you risk over-clamping and potentially damaging the component or stripping threads. Conversely, applying a dry torque value to an already-oiled bolt can stretch the fastener beyond its intended load. Reduce torque by approximately 15–20% when working with lubricated threads, unless the specification already accounts for that condition.

Why Correct Torque Matters on the Redshift EX

Over-torquing fasteners on the 2018 Alta Redshift EX can strip threads in the aluminum frame and bulkhead, crack mounting tabs, warp brake rotors, or permanently stretch bolts past their yield point. Aluminum is less forgiving than steel — once threads are damaged in the frame or swingarm casting, the repair is expensive and sometimes impossible without replacing the part entirely.

Under-torquing is equally dangerous. Loose axle nuts can allow wheel play that ruins bearings. Insufficiently tightened fork clamp bolts let the tubes slip, altering ride height and front-end geometry mid-ride. A loose rear shock bolt on the linkage introduces slop into the suspension, degrading traction and control. On a bike that delivers 120 ft-lbs of torque to the rear wheel from a standstill, every fastener has to do its job.

Where to Use Thread Locker on the 2018 Redshift EX

Thread locker is a vital part of maintenance on the Redshift EX. The electric motor produces zero vibration at idle but plenty of it over rough terrain, which can gradually back out fasteners over time. The following components commonly call for medium-strength (blue) thread locker:

  • Rear sprocket bolts
  • Front and rear brake disc bolts
  • Linkage bolts
  • Subframe mounting bolts
  • Skid plate / skidframe bolts
  • Kickstand pivot bolt

Avoid high-strength (red) thread locker unless you intend for the fastener to be semi-permanent and are prepared to use heat for removal. Never apply thread locker to axle nuts — those rely on proper torque and clamping force alone.

Choosing the Right Torque Wrench

Dirt bike work on the 2018 Redshift EX calls for a torque wrench that covers roughly 5–100 Nm. Three styles are commonly used:

  • Click-type: The most popular choice for home mechanics. It clicks audibly and physically at the set torque value, making it easy to feel when you’ve hit the number. Best for repetitive tasks like disc bolts and sprocket fasteners.
  • Beam-type: Simple, affordable, and requires no calibration. The needle deflects on a scale as you apply force. It works well but requires you to watch the scale carefully during use, which can be awkward in tight spaces on the Redshift EX.
  • Digital: Offers the highest accuracy with an electronic display and often an audible alert. Ideal for working with smaller fasteners where precision matters most, such as brake master cylinder bolts and motor cover hardware.

Whichever type you choose, having both a 1/4-inch drive wrench for smaller fasteners and a 3/8-inch drive wrench for larger bolts will cover virtually every fastener on the 2018 Alta Redshift EX. Proper torque is one of the simplest ways to protect your investment and keep this electric enduro machine performing at its best.

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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.