Intense Tazer Pro Electric Mountain Bike Review

Up and down without the suffering.

Intense Tazer Pro Electric Mountain Bike riding on trail.
Intense’s Tazer is a pedal-assist electric mountain bike with serious chops on the trail.Jeff Allen

What to do when you are staring at a 700-foot climb in just 2 miles? On the Intense Tazer, you left-thumb a button, kicking the Shimano STEPS pedal-assist motor into boost mode. Riding a long-travel enduro mountain bike included a fair amount of suffering on the up in exchange for the excitement of the down. Now, Intense's first eMTB gives good times up and down. I call it "suckless" mountain biking.

Intense Tazer Pro Electric Mountain Bike
Featuring a 250-watt Shimano STEPS E8000 motor, the Intense Tazer has an MSRP of $7,590.Jeff Allen

What Is An Intense Tazer

The Intense Tazer is a Class 1 electric mountain bike that features a carbon fiber frame, top-shelf Fox suspension, and a Shimano STEPS E8000 250-watt motor. Powering that motor is a 504WH battery from the same manufacturer. It very much is built in the same ethos of Intense’s high-end conventional cross-country, enduro, and downhill MTBs: quality components and striking frame designs that perform at the top of the field. This puts Intense at the high end on many serious mountain bike riders’ list. It looks fast standing still, and it goes like it looks on the trail

Fox Factory’s Float DPX2 Evol Air shock on white background.
Fox Factory’s Float DPX2 Evol Air shock is valved to work with the extra weight of an eMTB.Jeff Allen
The Intense Tazer’s Battery inside the carbon-fiber frame on white background.
The Intense Tazer’s Battery is tucked away inside the carbon fiber frame.Jeff Allen

How Does The Intense Tazer Ride?

Right out of the gate, the Shimano STEPS system works well with what feels like only a fraction-of-a-second assist lag as you apply force to the pedals. Eco mode is the lowest level of assist and will have you sweating in short order as you climb. As the assist peaks, there is still plenty of legwork to be done in the lowest (34-42T) gear. Trail mode makes moderately steep and technical climbs a breeze, especially if you get out of the saddle. Boost is a full-tilt-boogie experience, allowing you to achieve the maximum assisted speed of 15.5 mph on flat ground without virtually any effort. Anything above that speed is achieved only by extra human power, as the assist cuts out. On a steep downhill chute, I saw a maximum speed of 44.7 mph.

Intense Tazer Pro Electric Mountain Bike riding on trail in brush.
Trail mode makes easy work of moderately steep climbs and technical trails.Jeff Allen
Three assist modes on the Intense Tazer: Eco, Trail, and Boost.
Three assist modes are available on the Tazer: Eco, Trail, and Boost.Jeff Allen

I made a few experiments with range and assist mode. On one ride I used Boost the entire time and was out of juice after 22 miles. With a mixed-mode strategy, I stretched the range to 42 miles. Although the battery is hidden within the carbon fiber frame, removing it is easy and makes the possibility of carrying a spare battery an option, though not a cheap one at $450.

Intense Tazer Pro Electric Mountain Bike riding on trail in brush.
Range varies depending on terrain and mode, but if ridden hard in Boost mode, the Tazer’s battery gave 22 miles of range.Jeff Allen

Handling on the size-large frame is snappy despite the longish 49.6-inch wheelbase with a slack 64.9-degree head angle. Intense uses a 29-inch wheel in front with a 27.5-inch rear. This wheel-size combo lets the Tazer’s front wheel roll over obstacles with reduced deflection while the smaller-diameter rear gives excellent grip in corners and reduced gyroscopic effect. The large front wheel and smaller rear wheel combo has worked for decades on off-road motorcycles and works just as well here, providing stability and flickability. The Tazer is much more nimble than one might expect a 49-pound, long-wheelbase MTB to be.

Intense Tazer Pro Electric Mountain Bike pedaling on trail.
The 29-inch front wheel and 27.5-inch rear wheel combination lets the Tazer roll through chunky terrain with excellent stability.Jeff Allen

How Much Does The Intense Tazer Cost?

Most of the Intense lineup has multiple build levels for each model that ascend in pricing as the parts go up in spec, but the Tazer has only one level: the Pro Build at $7,590. This includes Shimano XT hydraulic brakes and crank, Shimano SLX derailleur and cassette, Fox Factory E-Bike Float 36 Kashima-coated fork and Float DPX2 Evol Air shock, and DT Swiss H1700 Hybrid wheels and 350 Hybrid centerlock hubs. While the price tag is hefty, it’s $2,400 less than Intense’s most expensive pedal-only model, the $10,000 M29 FRO downhill racer.

Intense Tazer Pro Electric Mountain Bike riding through forest.
Choose your boost: Intense’s Tazer takes about as much suffering out of mountain biking as you like.Jeff Allen

Intense’s first pedal-assist mountain bike is well executed machine — as you would expect from Intense — offering an impeccable fit and finish and great touch points on grips and seat. The stable yet quick-handling frame is well-matched to the Shimano STEPS electric powertrain and creates an eMTB that gives you a huge amount of fun with only as much suffering as you want. It really changes how you approach mountain biking versus a conventional bicycles by allowing you to conquer hills and terrain you might otherwise not attempt, expanding the fun you can fit into every ride. It’s a great mountain bike that happens to have pedal assist.