ETM RTR Alpha XL Review: 18kW, 70+ MPH Full-Size Electric Pit Bike

The ETM RTR Alpha XL is the top of Electro & Co's RTR lineup. It has the full Alpha powertrain, with 18,000 W and a 70+ mph max speed, in the extended XL chassis: longer swingarm, longer forks, longer tail, taller bars and 17/14-inch wheels. It runs an 81V 30Ah hot-swappable battery and weighs 145 lbs. It sells for $4,499.

Watch: The Electro & Co 2026 RTR Lineup

ETM RTR Alpha XL Specs at a Glance

Max output 18,000 W (two power modes plus hole shot mode)
Max speed 70+ mph
Motor E&C Revolver Alpha 70H IPM brushless (180c)
Battery 81V 30Ah (92.4V max charge), hot swappable with no tools. Same range as a 72V 35Ah.
Range Up to 60 miles (terrain, riding style and load dependent)
Charge time 1–4 hours, depending on charger (4.5A included, 12A fast charge ready)
Weight 145 lbs
Seat height 32 in (810 mm)
Wheelbase 46.5 in (1,180 mm)
Wheels and tires CNC aluminum hubs, aluminum rims, Kenda 70/100-17 front / 90/100-14 rear
Front suspension 48 mm KKE extended, fully adjustable (stiff)
Rear suspension KKE reservoir, fully adjustable (stiff)
Brakes 4-piston disc, front and rear
Chain High-strength 420
Display Bar-mounted LCD
Assembly About 1 hour
Price $4,499

What Makes the Alpha XL Different

Electro & Co's regular RTR bikes are pit bikes. The XL chassis stretches everything so a full-size adult fits. You get an extended swingarm for stability and straight-line tracking, extended forks and tail, and taller bars for a full-size riding position. The 46.5-inch wheelbase and 32-inch seat height put it closer to a small dirt bike than a pit bike.

The Alpha powertrain is what puts it at the top of the lineup. It's a 92V+ system with 18 kW peak, built for launches and high speeds. CNC triple clamps, bar clamps, peg bar and wheel hubs round out the premium build.

Motor and Power

The E&C Revolver Alpha 70H is an IPM brushless motor rated to 180°C. Electro & Co lists 18,000 W max output, two power modes and a hole shot mode for starts. It's rated for 70+ mph, which is very fast for this size of bike. This is a bike for experienced riders.

Battery, Range and Charging

The 81V 30Ah pack charges to 92.4V. Electro & Co says it gives the same range as a 72V 35Ah pack, up to 60 miles depending on terrain, riding style and load. It's hot swappable without tools, so a spare battery doubles your ride time. The included 4.5A charger works, and the bike is ready for a 12A fast charger that brings charge time down toward the 1-hour end of the 1–4 hour range.

Suspension, Brakes and Chassis

Up front is a 48 mm KKE extended fork, fully adjustable. Out back is a KKE reservoir shock, also fully adjustable. Both come set up stiff for aggressive riding. 4-piston disc brakes at both ends and a high-strength 420 chain mean the bike is built to be ridden hard. Kenda 70/100-17 and 90/100-14 tires give it more rollover than a 14/12 pit bike.

Electro & Co notes the bike is water resistant, not fully waterproof.

Alpha XL vs Alpha vs RTR XL

RTR Alpha XL RTR Alpha RTR XL
Max output 18,000 W 18,000 W 16,000 W
Max speed 70+ mph 70+ mph 65+ mph
Battery 81V 30Ah 80V 30Ah 72V 35Ah
Wheels 17" / 14" 14" / 12" 17" / 14"
Seat height 32 in 30 in 32 in
Weight 145 lbs 135 lbs 145 lbs
Price $4,499 $4,299 $3,799

Which one? The Alpha XL gives you the most power in the biggest chassis. The RTR Alpha has the same power in a compact pit bike size. The RTR XL has the same big chassis with 16 kW for $700 less.

Who the Alpha XL Is For

  • Full-size adults who want pit bike agility without being cramped.
  • Experienced riders who want 70+ mph and 18 kW.
  • Track and trail riders who want fully adjustable suspension and 4-piston brakes.

Recommended Upgrades for the Alpha XL

Shop every part that fits in our ETM RTR Alpha XL parts collection.

ETM RTR Alpha XL FAQ

How fast is the ETM RTR Alpha XL?

Electro & Co rates it at 70+ mph.

How far does the Alpha XL go on a charge?

Up to 60 miles, depending on terrain, riding style and load.

How long does it take to charge?

1–4 hours depending on the charger. A 4.5A charger is included, and it's ready for a 12A fast charger.

How much does the Alpha XL weigh?

145 lbs.

What is the Alpha XL seat height?

32 inches (810 mm), with a 46.5-inch wheelbase.

Is the battery swappable?

Yes. The 81V 30Ah battery is hot swappable with no tools.

Is the ETM RTR Alpha XL street legal?

The Alpha XL is built for off-road use. Street legality depends on your state and local laws.

What warranty does the Alpha XL have?

30 days against manufacturing defects and a 6-month limited powertrain warranty. After that, you get 30% off replacement powertrain parts for 1 year.

Get Your ETM RTR Alpha XL From TB Electric

Most orders ship within 24 hours, and you can finance your bike at checkout. Assembly takes about an hour, and our support team is made up of real riders who can help with setup and fitment. Questions? Email support@tbelectricmoto.com.

Shop the ETM RTR Alpha XL →

Bike reviews, Comparisons, Electro & co