Welcome to Horstman Mfg. Co., Inc. - Winning products since 1963

Horstman Manufacturing was founded in 1963 by karting legend Gil Horstman.
Gil first became involved in the sport during its formative days in the fifties.
Karting originated in Southern California where Gil and fellow enthusiasts took their prototype
vehicles to local venues like the Rose Bowl in Pasadena or the Eastland Mall in West Covina
to test and show them.
Kart clubs and race rules were soon in place and karting grew quickly around the globe.
Although Gil was an accomplished racer he preferred to help fellow karters win with his modified 2 cycle engines.
Gil sold his tool & die company in 1963 in order to devote all of his effort into supplying
the demand for his engines and karting accessories.
Gil brought many innovations to the sport as well as leadership, dedication, and caring.
Horstman is the leader in the industry for winning products.
Horstman technical staff are current or former kart racers with over 140 years of combined experience.

Available Now for 1 1/4" Axle!
Horstman Axle Clutch for Road Racing
Features:
New improved design
6" diameter housing for gear clearance
Ratio Range 3.20:1 - 5.20:1 (For 1 1/4" axle)
3 Carbon Fiber Friction Discs
Springs can be removed without
disassembly of clutch
Available also for 50MM Axles
Retail $895.00
Contact Factory for details

The Latest State of the Art Carbon Fiber Friction Material

The longest lasting wet friction material on the market.

Fits existing Horstman RoadRace (Enduro) and Sprint Axle Clutches

as well as the new 2017 model Horstman Axle Clutch

H140021 (For New Clutch Design .095" OAT)

H112600 (For Vintage 0.100" OAT)

$40.00

HDC-55 Five Disc Oil Bath Clutch

Horstman Mfg is proud to present the only 5 Disc Wet Clutch in the Karting Industry.
The HDC-55 Oil Bath Clutch is perfect for the high horsepower Yamaha Classes.
Our proprietary Wet clutch Discs are built to withstand the punishment
Kart Racing has to offer.
Once again Horstman has proven to be the premiere Clutch Manufacturer through
Innovation rather than imitation.
$450.00
#336055

DXL FRICTION DISC P/N 334000 PRICE $45.00
NEW STATE OF THE ART CARBON FIBER WAFERS BONDED TO CHROME MOLY SUBSTRATE ....
AVAILABLE DIRECT FROM HORSTMAN MFG

Oil, 1 Quart Nytro Clutch Coolant

$19.95

#330125

All Horstman Clutches are made in America,
unlike some of our competitors!

Introducing the all new Mad Rhino 4 Cycle Racing Clutch.
Ideal for LO206 and clone racing or recreational
and industrial applications.
Fits a 3/4" shaft. Weighs approximately 2 lbs. and 3 5/8" diameter.
Comes with our bolt on Sprocket for quick change and rigidity
(Interchangeable with our Reaper and X5 clutch models).
Flange drum for extra strength.
3 shoe design for improved balance.
Bi-directional for inboard or outboard application.
Vent holes in the drum to remove heat.
12-15 tooth #35 sprockets available and also
16, 17, 20, 21 and 23 tooth #219
$99.95

This is a one time opportunity to purchase
the most advanced 2 stroke clutch and refresh
Kit for the KT100 Yamaha class from the
number 1 manufacturer
of Kart clutches since 1963.

This Holiday special includes the following:

The new complete HDC-5B two disc clutch for 2013

Heavier levers and .100" Heavy Duty Springs
for better lock-up

The most Durable Basket in Karting

Superior 8 bolt Sprocket

Special includes:

Extra Sprocket of your choice (10, 11, 12 tooth)

2 extra frictions

1 extra Floater

5 extra .100" Heavy Duty Springs

5 extra Aircraft Aluminum Alloy Retainers

5 extra adjusting Screws

$338.00 ($166.36 Savings)
Plus free Shipping!

At this price why buy a knock off when
you can get the real thing!!

New for 2013
.100" Spring set w/ Retainers for HDC-5 Clutches
Designed specifically for High Rev KT 100 applications
$25.00
H3131K