King Goat 62.5Ah
The King Goat with the big battery. A 72V 62.5Ah SVolt EV-cell pack, about 4,500 Wh, feeding an upgraded mid-drive at 5,000W rated and 12,500W peak with nearly 400 Nm. Add the optional 20Ah tank pack and it's 82.5Ah, which GOAT says is 200-plus miles.
Dial In Your Ride
Four Drive Modes
GOAT ships every King Goat locked to Class 2: 20 mph on the throttle, 25 mph with the pedals. The 75 mph figure is GOAT's unlocked, off-road number. Ranges are GOAT's for the 62.5Ah pack alone and depend on rider weight, terrain and how hard you lean on it.
Make It Yours
Colour Options
Check availability →
Watch the Review
Full Video Review
Watch on YouTube →
From the Review
Out on the Trail
Frames from Ben's video
Up Close
Detail Gallery
Shot in Ben's studio and on the road
The Engineering
What's Under It
Motor & Drive
Patent-pending 72V mid-drive, 12,500W peak.
5,000W Rated, 12,500W Peak
The King Goat's custom mid-drive, rated at 5,000W and peaking at 12,500W by GOAT's numbers, driving the rear wheel through the chain so the gearing multiplies torque on the way to the ground.
Nearly 400 Nm Of Torque
GOAT quotes nearly 400 Nm at the motor, up from 320 on the 40Ah King Goat. That's the difference between a bike that gets going and a bike that climbs anything you point it at.
Kinetic Energy Recovery
Regen that isn't tied to the brake lever. Any time the motor isn't driving, coasting or slowing, it turns generator and feeds charge back into the pack.
Battery & Power
72V, charged by UL-certified 84V chargers.
72V 62.5Ah SVolt frame battery
SVolt EV cells, twenty of them in place of the 240 Samsung 21700s in the 40Ah pack, for about 4,500 Wh at 72 volts. GOAT's pitch is output and longevity as much as capacity: they quote a roughly 30% bump in peak power over the 40Ah bike.
The Weight Of It
It's a 75 lb battery in an 18 × 6 × 10 inch case, and it takes the bike from 179 lbs to 227. Add the optional 72V 20Ah tank pack, another 27 lbs, and you're at 82.5Ah.
3–4 Hour Charge
One 84V 18A UL charger, and GOAT quotes three to four hours to full despite the size of the pack.
Chassis & Brakes
Motorcycle parts, not bicycle parts.
Trama Inverted Fork
An inverted motorcycle-style fork with 100mm of travel up front, the same unit that made the King Goat feel planted at speed in Ben's review.
Fastace Rear Suspension
A Fastace dual-absorbing rear shock with a damping hinge, 80mm of travel and a 50mm stroke, tuned for the weight of a 72V pack.
Karasawa 4-Piston DOT Brakes
Motorcycle-rated four-piston hydraulic discs running DOT fluid, front and rear, on self-repairing puncture-resistant tubeless Innova tires in 110/90-16.
How It Rides
The King Goat, More Of It
Same chassis, bigger pack, more power (P / Eco / Normal / Sport)
Ben scored the 40Ah King Goat a 9.8. The 62.5Ah version keeps the chassis, the Trama inverted fork, the Fastace coil shock, the Karasawa DOT brakes and the cockpit, and changes what's under the seat: an SVolt EV-cell pack and a controller tune that GOAT says lifts peak output by roughly 47%.
Kinetic Energy Recovery is new too. It works like regen braking but isn't tied to the lever: any time the motor isn't driving, the bike feeds charge back into the pack. Self-repairing tubeless Innovas come standard on the 62.5Ah build. Modes cycle through P, Eco, Normal and Sport, and it ships locked to Class 2.
Find Your Fit
Size & Fittings
Ben, 5'9", next to the bike from the review
Will It Fit You?
- Seat height34" (optional 2nd seat add-on)
- L × W × H75 × 30 × 44"
- Wheelbase55"
- Ground clearance9"
- Weight (w/ battery)227 lbs
- Weight limit440 lbs
Ben is 5'9" and flat-foots it, because the suspension sinks under rider weight. He ran short cranks and higher-rise bars to sit more upright. His line on who it fits: “If you're a big guy, six feet and taller, two to 300 pounds, it doesn't matter. This thing is made for big people.” His setup weighs about 220 to 230 lb with the second battery. Plan on a ramp.
Plan Your Ride
Your Range, Not Theirs
The 62.5Ah pack is the baseline. Slide the extra battery to 1,440 Wh to see what the optional 72V 20Ah tank pack adds, then set how fast you ride, what the ground looks like and what you weigh, and you get the window to plan a ride inside.
The Numbers
Full Specifications
Source: goatpowerbikes.com →⚡ E-System
🏍️ Performance
🔧 Chassis, Brakes & Wheels
✨ Features & Options
The Bike Cave Verdict
Ben's Take
“If you want to buy one of the best, most powerful, most badass bikes on the market, it'll cost you about four grand right now. Would I recommend the King Goat to a brand new e-biker? Maybe. You can ride this thing in eco all you want, perfectly legal anywhere you go. But is that the best investment of $4,000? Probably not. You can probably get yourself a $1,000 or $2,000 bike, you know, very well put together bike, and it's going to do you just fine at 20 miles an hour, maybe even up to 28. And if you want to work your way up to something that does motorcycle speeds with motorcycle range, well, that's where you look.”
“The brakes, guys, you saw how these brakes performed. By far the best braking performance I've ever had on the channel. This bike's heavy, but man, it's got the right brake package for a bike like this.”
👍 What I loved
- 62 mph on the GPS at 200 lb (65 on the speedo): “the fastest I've ever gone on any bike”
- 45 mph uphill in max torque mode and still picking up speed
- Stopped in about 12 feet from roughly 28 mph, the best braking he has tested
- Quietest mid-drive he has ridden, with a chain that stays free of rub
- Full power at 78% battery on the second climb with the 82.5Ah setup
- Seat, frame welds and the display in bright sun all praised
👎 What to know
- About 220 to 230 lb with the second battery: “You're definitely not going to lift this into your car”
- “You are not going to weave your way through traffic very eloquently on this thing”
- Stock grips feel plasticky on a $4,000 bike
- Pedals run off a cadence sensor, not a torque sensor, and cap at 20 mph
- Suspension is soft out of the box, almost too soft until you tighten it
- Not the best $4,000 for most riders, by his own answer
Frequently asked questions
What's different from the King Goat Ben reviewed?
The battery, the controller and two standard-fit upgrades. The 40Ah pack (2,880 Wh of Samsung 21700 cells) becomes a 62.5Ah SVolt EV-cell pack at about 4,500 Wh. GOAT pairs it with a controller tune that lifts peak output from 8,500W to 12,500W and torque from 320 to nearly 400 Nm. Kinetic Energy Recovery and self-repairing tubeless Innova tires come standard on the 62.5Ah build. Frame, forks, shock, brakes, wheels and cockpit are the same.
How far will it go?
GOAT's numbers on the 62.5Ah pack: up to 175 miles with pedal assist, 150 in Eco under 20 mph, 100 in Normal and 62 in Sport above 50 mph. With the optional 20Ah second pack, 82.5Ah total, GOAT claims 200-plus miles on a charge. Those are best-case, light-rider figures. Use the range calculator on this page with your own weight and speed for a realistic window.
Is it worth $944 over the 40Ah King Goat?
On the spec sheet you get about 1,600 Wh more battery, a claimed 47% more peak power, regen that works while coasting, and better tires, for roughly 27% more money. If you ride long distances or want the 82.5Ah setup, the maths is easy. If you mostly ride short and hard, the 40Ah bike Ben reviewed is a lot of King Goat for $3,555.
Can I add a second battery?
Yes. GOAT's 72V 20Ah tank-style pack fits the 62.5Ah King Goat and is sold separately. It's 27 lbs and takes the system to 82.5Ah. That's the configuration behind GOAT's 200-mile claim.
How fast is it?
As shipped, 20 mph on the throttle and 25 mph on pedal assist, which keeps it a Class 2 e-bike. Unlocked for off-road use, GOAT claims 75 mph. Ben saw 52 mph on the GPS on the 40Ah bike. On the 62.5Ah bike he hit 62 mph on the GPS at 200 lb (the bike's own speedometer read 65), the fastest he has ever gone on any bike.
Is there a discount code?
Yes. Code TOPTOBOTTOMMTB at checkout through my link takes 10% off at goatpowerbikes.com.
Kit it out
Accessories made for the King Goat
All Goat Power accessories (12 matched) →Goat Power builds these for the King Goat, and the 62.5Ah bike shares its frame. The second-battery kit is the 20Ah tank pack that takes it to 82.5Ah. Fitment comes from Goat Power's own product listings, not our guesswork.
72V 20Ah Battery Kit for The King Goat - Secondary Power Upgrade$999→
72V 20Ah Battery Kit for The King Goat$899→
King Goat/Mini Goat 12A Charger$200→
Rear Cargo Rack for Motor Goat, Power Goat, Mini Goat, And King $200→
Rear Cargo Rack for Motor Goat, Power Goat, Mini Goat, and King $200→
Custom King Goat Long Seat$325→
Custom King Goat Short Seat$265→
Seat Add-On for the Mini Goat and King Goat$100→
Goat Cargo Trailer$750→
Stiffer King Goat Fastace Shock - 820lbs-950lbs Rated$150→
Backrest for Motor Goat, Power Goat, Mini Goat, and King Goat$100→
King Goat Brake Maintenance Kit$100→