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Deal.ai › Compare

Goat Power Bikes Billy Goat SL vs King Goat V3 Electric Bike

These are two very different machines. The Billy Goat SL is a street-legal Class 2/3 fat-tire ebike: 750W (1,000W peak), 70Nm, 25MPH pedal assist, 60+ miles of assist, 4-piston hydraulic brakes and a 7-speed drivetrain. The King Goat V3 is a moped-style flagship: 8,500W to 12,500W peak, up to 400Nm, 65MPH+, and a 40Ah or 62.5Ah battery with an optional second pack for 200+ miles. Buy the SL for legal, pedal-assisted commuting; buy the V3 only if you want motorcycle-class power and can live with its weight, legality and licensing questions.

  • Choose the Billy Goat SL if you want a street-legal, pedal-assisted fat-tire bike for commuting and errands, with hydraulic brakes and a 7-speed drivetrain.
  • Choose the King Goat V3 if you want moped-style, motorcycle-level acceleration and top speed and long range matters more than pedaling or legal simplicity.

Prices

  • Goat Power Bikes Billy Goat SL: $1,999.00 at Goat Power Bikes (last seen Nov 13)
  • King Goat V3 Electric Bike: $3,555.00 at eBike Haul (last seen Nov 13)
  • Difference: the Goat Power Bikes Billy Goat SL is $1,556.00 cheaper than the King Goat V3 Electric Bike at the latest prices (Nov 13)
Goat Power Bikes
The Billy Goat SL

Goat Power Bikes Billy Goat SL

The Billy Goat SL

$1,999.00at Goat Power BikesChecked Nov 13
See all prices and details
Visit Goat Power Bikes
Pros
  • Street-legal Class 2/3, no license needed in most states
  • 60+ miles of pedal-assist range from a UL 2271 certified Samsung pack
  • Strong 4-piston hydraulic brakes and puncture-resistant tires
  • 7-speed Shimano gearing makes real pedaling practical
  • Turn signals, horn, headlight and wheel lock included
Cons
  • 6-7 hour charge time
  • 1,000W peak is modest next to the V3
  • 35+ mile throttle-only range is limited for long trips
  • Fat tires and 20-inch wheels are less nimble than a commuter bike
King Goat
King Goat V3 Electric Power Bike

King Goat V3 Electric Bike

King Goat V3 Electric Power Bike

$3,555.00at eBike HaulChecked Nov 13
See all prices and details
Visit eBike Haul
Pros
  • Motorcycle-class acceleration and 65MPH+ top speed
  • Up to 400Nm of torque in the 62.5Ah version
  • 200+ mile range with the optional second battery
  • Four riding modes plus kinetic energy recovery
  • Inverted forks, DOT-4 brakes and upgraded rear suspension
Cons
  • Not a legal ebike in most states; registration and licensing may apply
  • Very heavy and hard to store, lift or park
  • Pedaling is an afterthought
  • Ships as two boxes, bike and battery separately
  • Overkill for short commutes and bike-path riding

What separates them

Goat Power Bikes Billy Goat SLKing Goat V3 Electric Bike
Motor and power750W nominal, 1,000W peak, 70Nm8,500W peak (40Ah) or 12,500W peak (62.5Ah), up to ~400Nm
Top speed20MPH throttle, 25MPH pedal assist, Class 2/3Exceeding 65MPH
Battery and range52V 20Ah Samsung cells, 35+ miles electric, 60+ miles assist72V 40Ah or 62.5Ah, optional second pack for 82.5Ah and 200+ miles
PedalingFunctional 7-speed Shimano drivetrain, real pedal assistMoped-style; pedals are secondary to throttle riding
Brakes and suspensionKarasawa 4-piston hydraulic discsDOT-4 Karasawa hydraulic brakes, inverted forks, upgraded rear suspension
Weight and handlingLighter, easier to lift, store and ride in bike lanesLarge, heavy frame; hard to carry or park like a bicycle
Legal statusStreet-legal as a Class 2/3 ebike in most statesSpeeds and power put it outside ebike classes; registration and licensing may apply
Riding modes and extrasThrottle, assist levels, turn signals, horn, key ignition, wheel lockECO, NORMAL, MAX TORQUE and SPORT modes, kinetic energy recovery, self-healing tires

Price history

  • Goat Power Bikes Billy Goat SL: lowest $1,999.00 on Nov 13 at Bolton Ebikes.
  • King Goat V3 Electric Bike: lowest $3,705.00 on Nov 6 at Radmotousa.

Prices at every store

Goat Power Bikes Billy Goat SL

  • Goat Power BikesNew

    In stockReturn policy

    $1,999.00Checked Nov 13
    Visit Goat Power Bikes
  • Bolton EbikesNew

    In stock

    $1,999.00Checked Nov 13
    Visit Bolton Ebikes
All 2 stores and price history →

King Goat V3 Electric Bike

  • eBike HaulNew

    In stockReturn policy

    $3,555.00Checked Nov 13
    Visit eBike Haul
  • RadmotousaNew

    Availability unknown

    $3,705.00Checked Nov 6
    Visit Radmotousa
All 2 stores and price history →

Specs compared

SpecGoat Power Bikes Billy Goat SLKing Goat V3 Electric Bike
Motor power750W (1,000W Peak)—
Torque70NM—
Throttle top speed20MPH (Class 2)—
Pedal assist top speed25MPH (Class 3)—
Battery52V20AH Samsung Cells—
Charger58.8V/3A Charger—
Charge time6-7 Hours For Full Charge—
Electric range35+ Miles—
Pedal assist range60+ Miles—
TiresINNOVA Puncture Resistant Tires (F/20x4, R/20x4…—
BrakesKarasawa 4-Piston Hydraulic Disc Brakes—
ShifterShimano 7 Speed Shifter—
Show all 14 specsShow fewer specs
SpecGoat Power Bikes Billy Goat SLKing Goat V3 Electric Bike
Color—All Black - Pedals, Black - Gold Forks - Pedals
Battery size—40AH, 62.5AH

What reviewers say

Goat Power Bikes Billy Goat SL

Owners rate the Billy Goat SL 4.9 across 452 reviews, praising its range, brakes and build. The main complaints are the long charge time and less peak power than the V3 line.

What people mention
  • RangePraisedRiders report the pedal-assist range holds up well for long commutes and errands.
  • BrakesPraisedThe 4-piston hydraulic discs are called strong and confidence-inspiring.
  • BuildPraisedOwners describe the bike as sturdy and well put together.
  • Charge timeCriticisedA full charge takes 6-7 hours, which owners find slow.

King Goat V3 Electric Bike

Reviewers highlight the King Goat V3 as a high-performance flagship that blurs the line between e-bike and motorcycle. It is praised for its massive torque and frame size, though the naming conventions can be confusing for new buyers.

What people mention
  • PowerPraisedRiders describe strong acceleration and torque, especially in the 62.5Ah version.
  • RangePraisedThe optional second battery is what makes the 200+ mile claim possible.
  • WeightMixedThe large frame and big battery make it heavy to move and store.
  • NamingCriticisedThe 62.5Ah bike is sold as a V3 but reviewed elsewhere as a V4, which confuses buyers.

Questions and answers

Which is better for a daily commute?
The Billy Goat SL. It is street-legal, lighter, has a 7-speed drivetrain and 60+ miles of assist, so it fits bike lanes and normal parking. The V3 is faster but heavy and legally restricted in many places.
Which has more range?
The King Goat V3. Its 62.5Ah pack plus the optional second battery reaches 200+ miles. The Billy Goat SL does 35+ miles on throttle and 60+ with pedal assist.
Do I need a license for the King Goat V3?
Likely yes in most US states. At 65MPH+ and 8,500W or more it falls outside Class 1-3 ebike rules, so check registration, insurance and licensing where you live. The Billy Goat SL is sold as a Class 2/3 ebike.
Is the V3 worth stepping up to?
Only if you want motorcycle-level speed and range and accept the weight and legal work. For commuting, errands and actual pedaling, the Billy Goat SL covers more use cases with less hassle.
Which is easier to live with?
The Billy Goat SL. It charges in 6-7 hours, has a 7-speed drivetrain, turn signals and a wheel lock, and can be lifted and stored like a bicycle. The V3 is a large moped-style machine.
How do the brakes and suspension compare?
Both use Karasawa hydraulic brakes. The V3 adds DOT-4 spec brakes, inverted front forks and upgraded rear suspension for its higher speeds. The SL's 4-piston setup is strong for a 25MPH bike.

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