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 Features: top
  • The Sachs MadAss 125 offers sporty riding in a minimalist design.
  • 124cc 4-stroke engine provides a smooth and powerful ride.
  • 4-speed transmission offers a real motorcycle ride.
  • Electric start make the MadAss 125 easy to use.
  • The MadAss 125 achieves fuel economy up to an estimated 85 mpg* with a tank that holds 1.22 gallons of gas.
  • The MadAss 125's powerful air-cooled 124cc 4-stroke provides a great ride.
  • Electric start for quick and easy operation.
  • 4-speed transmission offers great off-the-line acceleration.
  • The under-seat muffler incorporates exhaust catalyst technology to reduce air pollution and meet emission regulations.
 Chassis and Suspension:
  • 16" aluminum wheels with large tires for better handling.
  • Robust mono-frame has a step-through design for easy mounting.
  • Fuel tank holds 1.22 gallons of gasoline to provide plenty of cruising range.
  • Front 43mm oil-filled shocks provide for a stable, sporty ride.
  • Mono coil-over rear shock mounted on the banana swing arm provide a compliant, stable ride.
  • 260mm front disc brake and 210mm rear disc brake provides serious stopping power.
 Other Features:
  • Large following of diehard riders and MadAss clubs.
  • Hundreds of after-market parts such as racing engines, racing exhausts, luggage racks, and more.
  • Locking steering column provides extra security when parked.
  • Digital dash provides a large speedometer.
  • Under seat exhaust.
  • Twin 55W headlamps.
 Specs top
MSRP* $2,699 (Matte Black)
$2,699 (Graphite)
$2,699 (Sun Yellow)
$2,699 (Bright Silver)
$2,699 (Racing Red)
Engine EPA/CARB Certified 4 Stroke Air Cooled
Fuel Consumption 85 mpg**
Cylinder Number 1
Piston Displacement 124 cc
Starting System Electric/Kick
Ignition CDI
Fuel Tank 1.22 gallons
Gear Shift 4-Speed, Manual Clutch (1-N-2-3-4)
Seat Height 33"
Total Length 72.4 inches
Total Width 29.9 inches
Total Height 40.8 inches
Dry Weight 209 pounds
Capacity n/a
Front Suspension 43mm Hydraulic Shocks
Rear Suspension Coil Over Shock
Front Brake Hydraulic 260mm Disc
Rear Brake Hydraulic 210mm Disc
Front Tire 90/90-16
Rear Tire 120/80-16
Top Speed 55 MPH****
Colors Flat Black, Graphite, Yellow, Silver, Red
 MadAss in the News top
Pit Pass Radio Interview: Bill Peirce, Found of Peirspeed

Bill Peirce, President of Peirspeed

Demo Ride: 2010 Sachs MadAss 125.  Ron Arnold with the Detroit Examiner Rides the MadAss 125
"Lean on it, like Mark and I did, and you might be surprised as you easily outpace cages and reach an indicated top speed of about 60 mph."

Join the MadAss Army! Check out the new MadAss Internet Community.
If you are looking for a local club, or need help with your MadAss modifications, join the MadAss Army. The community has a discussion forum so you can chat with fellow owners. Go to

Dealer Expo 2010 - Peirspeed Madass 125 review by the Detroit Examiner
"What can you say about the Peirspeed Madass 125? Itís a small motorcycle in a sort of scooterish style. Itís incredibly light. Itís funky. Minimalist. It's inspired. Weird. Itís loveable and for many people, itís wanted." Click here to read the full story.

TheScooterScoop interviews Phil Waters from Pride of Cleveland about his coast-to-coast trip on a MadAss 125: Reviews the 2010 Sachs MadAss 125
"When's the last time you lusted over a scooter? My moment came when I laid eyes on the Sachs MadAss 125, which is priced at $2,699" - Click here to read the full review.

2010 Sachs MadAss Review on (Includes video)
"Brand new and full of contradiction for 2010 is the Sachs MadAss 125. Itís compact and agile, yet stout and wildly aggressive looking, sort of like a pissed-off badger. Sachs went with a different animal analogy, a wild donkey. They also went with a different adjective, ďmadĒ meaning furious or deranged. That, my friends, is how they came up with this fantastically eyebrow raising name." - Click here to read the full review.

2010 Sachs Madass 125 Review on
"The genius of the MadAss lies in its simplicity. Weighing in at a sprightly 220 lbs, this bike would make even the most naked motorcycle blush. No fuel gage, no center stand, no storage compartments, racks or windshield, itís ďmotorcycleĒ distilled to its purest form. Propelled by a 119.7cc, 4-stroke, 4-speed engine the MadAss is capable of reaching 56 mph right out of the box."  - Click here to read the full review.

TheScooterScoop Review of the 2010 MadAss 125:

 Gallery top
> Download Sachs MadAss 125 Flyer <

Want to see some cool MadAss videos?  Click here to check them out.

 Performance Parts Suppliers top
Moto-Scoot   ∑   (414) 272-6680
Moto-Scoot specializes in Sachs MadAss Performance Parts and Tuning. Providing everything from big bore engine kits, to performance exhausts and intakes, to racks and accessories.  Moto-Scoot is home of the "Ass Pipe" exhaust system.
Dr. MadAss / Pride of Cleveland Scooters   ∑   (216) 227-1964
Dr. MadAss introduced his under-seat, performance exhaust on his 2,850 mile trip across the country on a MadAss 125. Pride of Cleveland has long been a leader of scooters, parts and accessories.
OORacing   ∑   From the US dial: 001-44-0-1304-814-447 (Based in the UK)
OORacing is a specialist in all kinds of tuning and engineering work for motorcycles and cars. They also have a complete online store with hundreds of parts for the MadAss.
Performance Parts Disclaimers:
  • These are independent companies not affiliated with Peirspeed or Sachs.
  • These parts have not been tested by Peirspeed or Sachs. They are not warranted by Peirspeed or Sachs.
  • Use of these parts may void your warranty.
  • Some parts are for Racing Use Only or Off Road Use.
  • We recommend that these performance part be installed by a qualified motorcycle technician. If you have any doubts as to your ability to install these performance part, please consult with your local Peirspeed dealer. Read all instructions first before starting installation. Make sure the motorcycle and exhaust system are completely cool before starting the installation. Also, make sure the bike is secure on a centerstand or ideally a service lift during installation. Be sure to save all stock components for possible use later.

* Price and Specifications subject to change without notice. Please read your owners manual and all labels before operating.

** Fuel economy estimates are based on customer feedback. Your mileage may vary depending on riding conditions, weight of the rider, how you ride, how you maintain your vehicle, cargo weight and accessories.

*** See dealer for complete warranty details and information regarding the road-side assistance program.

**** Top speed estimates based on customer feedback. Your top speed may vary depending on the riding conditions, weight of the rider and cargo, how you maintain your scooter and accessories.


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