Canyon Spectral CF 9 E-MTB Review: Big Battery, Serious Trail Bike

Written by: Chris Van Leuven | August 27, 2026 | Time to read: 6 min

Canyon’s naming makes more sense once you break it apart. The Spectral is the electric side of Canyon’s Spectral trail-bike family, and the regular Spectral is the full-power e-MTB. It’s built around Shimano assistance and enough battery for long, climbing-heavy rides rather than trying to keep weight to a minimum.

The CF refers to the carbon-fiber frame platform. The 9 distinguishes the higher-spec build within that platform; Canyon has also sold Spectral CF 7 and CF 8 versions with different component packages. Those are different build levels. The CF 9 itself has also changed across model years. That makes this review narrower than a look at the entire Spectral family. We’re focusing specifically on the CF 9 and the different versions Canyon has sold under that name.

With the CF 9, the year belongs next to the model name. The motor, battery, geometry, suspension, and drivetrain have changed over time, so two used CF 9s can share a name without being the same bike.

Earlier versions paired Shimano power with smaller batteries. A major redesign brought Canyon-developed 720 and 900 Wh battery options, revised geometry, and the 29-inch front and 27.5-inch rear wheel combination. Later CF 9 builds moved to Shimano’s EP801 motor, while drivetrain and suspension packages kept changing.

Here’s a more useful way to look at the progression:

The regular Spectral prioritizes full-power assistance and battery capacity over reducing weight. That’s useful if your rides involve long climbs, plenty of elevation, and enough trail to use the extra capacity.

The Spectral goes the other direction, using a compact TQ motor and 360 Wh battery to cut weight and get closer to the feel of an unassisted mountain bike. If you’re looking at a used CF 9, you’re shopping the full-power side of Canyon’s lineup. The next step is figuring out exactly which CF 9 you’re looking at.

The 85 Nm number is useful, but it doesn’t tell you how the bike will feel halfway up a loose, technical climb. There’s plenty of power for sustained climbing. The Spectral doesn’t need a class-leading torque figure to make its case.

On technical terrain, how that assistance arrives matters just as much. Too much of a spike may break rear-wheel traction when you’re trying to get over a wet root, loose rock, or ledge. Shimano’s EP8 and EP801 systems deliver full-power e-MTB assistance while still letting the rider control how that help reaches the rear tire. Canyon lists the newer EP801 at 85 Nm with up to 400% pedal assistance.

The practical advantage goes beyond making one climb easier. A motor like this will turn a shuttle lap into a pedal lap, make another descent realistic, and connect trail systems that would take considerably longer on a regular mountain bike.

In a special video review, the Upway team goes hands-on with the Canyon Spectral:ON CF 9! Check it out below for an more in-depth look at such an exciting electric mountain bike available on Upway at a huge discount:

The Spectral pairs a 29-inch front wheel with a 27.5-inch rear, often called a mullet setup. The bigger front wheel helps roll through rocks, roots, holes, and rough trail. The smaller rear gives Canyon more room to keep the back of the bike manageable.

That matters on a full-power e-MTB carrying a large battery. The smaller rear wheel doesn’t make a heavy bike light, but it can make the back end easier to move through tight turns and technical terrain.

The redesigned geometry uses a 65.5-degree head angle and 76.5-degree seat angle. The combination gives the rider room on descents while keeping a useful seated position when the trail heads steeply uphill. You’ll still notice the weight in tight switchbacks, tricky low-speed moves, or anytime the bike has to come off the ground.

Put it beside the Spectral and Canyon’s two approaches are obvious. The ONfly uses a compact TQ HPR 50 motor and 360 Wh battery to get closer to the weight and feel of an unassisted trail bike. The regular Spectral trades that lightness for more power and range.

The redesigned Spectral moved to a 160 mm fork, putting it in aggressive trail-bike territory. Current CF 9 builds continue with a 160 mm Fox 38 Performance Elite, while Maxxis Assegai and Minion DHR II tires reinforce the same intent. These parts prioritize traction, braking, and control over low weight or rolling resistance.

A heavier e-MTB can feel stable when the trail gets fast and rough. However, you’ll notice the weight more in tight turns, tricky sections, or anytime you want to get the bike off the ground. But on chunky singletrack, long descents, technical climbs, and repeat laps, that extra weight comes with suspension, battery, and motor power you can actually use.

If most of your riding is mellow singletrack or smooth dirt roads, there’s a lot of bike here that may never get used.

What 900 Wh does give you is more room before range anxiety starts forming during the ride. That’s why Canyon developed the 900 Wh option around maximum range. For long days with several thousand feet of climbing, that extra capacity is a real advantage. For a 60- or 90-minute loop, it may simply mean carrying battery you rarely use.

That’s the tradeoff with full-power e-MTBs. A smaller battery saves weight and makes the bike easier to move around. The 900 Wh option accepts more weight in exchange for considerably more capacity.

If range is what keeps cutting rides short, the larger pack is very appealing.

The CF 9 is appealing when your rides include steep climbing, rough descending, and enough mileage to use a full-power motor.

It’s particularly well suited to riders who:

• Ride steep or technical trails and want strong climbing assistance.
• Take longer rides that drain a large battery.
• Spend plenty of time descending and want substantial suspension and aggressive tires.
• Prefer a mullet setup over two 29-inch wheels.
• Are willing to carry more weight for power and range.

A lighter-assist bike is a better direction when maneuverability and a more traditional mountain-bike feel matter more than maximum battery capacity. The Spectral is the obvious Canyon alternative, while the Orbea Rise takes a similarly lighter approach.

The CF 9 is also a lot of bike for short, smooth rides. Its suspension, tires, motor, and battery pay off most when the terrain gives them something to do.

The model-year differences matter when you’re shopping for a used Spectral CF 9, but you shouldn’t have to sort through them on your own. Upway lists the specs, mileage, and condition of the individual bike, and every e-Bike goes through a 50-point inspection before it’s sold.

That’s especially useful with a bike like the CF 9, where the motor, battery, and components can change from one version to another. You can see what you’re buying before comparing it with the price of a new one. Inventory changes, but when a Spectral CF 9 turns up on Upway, buying used can be a way into a high-end trail e-MTB for considerably less than buying one new.