SACHS

Sachs and its indestructible 2-strokes

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Anyone who loves mopeds will also appreciate the services of the almost indestructible Sachs 503 engine. This version of the legendary Sachs 50, produced exclusively for Switzerland, powered and still powers numerous mopeds from various manufacturers. Of course, the manufacturer and former global corporation has also given the world other beautiful daughters, such as the original Saxonette moped or the cult Hercules Sachs moped, but the opus magnum is definitely this particularly robust and low-maintenance engine.

Seat
flag_germanyGermany, Schweinfurt/Nürnberg
Status
Active
Foundation1895
logo_sachs

Bicycle and rolling bearing specialist becomes world-famous motor manufacturer

As with many renowned moped manufacturers, the Schweinfurt-based engine manufacturer's origins lie in the production of accessories for bicycles. In 1895, a good 40 years before the manufacturer's first 2-stroke engine was launched on the market, Präcisions-Kugellagerwerke Fichtel & Sachs produced bearings and bicycle hubs. A modest 70 hubs left the factory every day. Nobody could have guessed that this small manufacturing operation, which was located in a simple one-storey residential building, would one day mature into a genuine specialist for 2-stroke engines of world renown. The company's development gained momentum when the inventor and company founder Ernst Sachs developed the Torpedo freewheel hub for bicycles. A great success, as the particularly low-maintenance bicycle rear wheel hub became a real bestseller. Spurred on by its success and equipped with fresh capital from the proceeds of marketing the Torpedo freewheel hub, numerous other patents, innovations and new developments in the field of roller bearings and bicycle hubs followed. Even the First World War and the Great Depression only temporarily slowed the company's rapid growth.

Light coil 6V with cable

For: Puch · Sachs · Zündapp Belmondo · Tomos · DKW · Hercules · Kreidler · Zündapp · KTM · Rixe

10144

Light coil 6V with cable

Tension: 6 V · Performance: 17 W · Ø Internal flywheel: 90 mm · Height: 25.2 mm · Total length: 76.8 mm · Mounting type: Screws · Number of fixing points: 2 pcs · Ø mounting hole: 4.1 mm · Hole spacing: 54 mm · Area of application: Original · Area of application: Standard

21,80 EUR

GPO headlight angular chrome / black without switch
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For: Universal · Puch · Sachs

10151

GPO headlight angular chrome / black without switch

Manufacturer: GPO · Test mark: none · Housing material: Plastic · Lens material: Plastic · Surface: chrome-plated · Surface: raw · Color: Chrome · Color: black · Color: transparent · Bulb holder: BA15d · Tension: 6 V · Tension: 12 V · Speedometer recording: 48 mm · Switch included: No · Battery operated: No · Width: 120 mm · Height: 86 mm · Depth: 140 mm · Mounting type: screw in (thread) · Number of fixing points: 2 pcs · Thread size: M6 · Area of application: Standard

23,00 EUR

Not so nice Not so nice
Bearing cone M12x1 galvanized

For: Puch · Sachs

10571

Bearing cone M12x1 galvanized

Material: Steel · Surface: galvanized (blue) · Ø outside: 20 mm · Ø ball [inch] / [mm]: 1/4" (6.35 mm) · Ø ball [inch] / [mm]: 3/16" (4.78 mm) · Ø ball [inch] / [mm]: 7/32" (5.56 mm) · Thread type: MF12x1 (fine pitch thread) · Width across flats SW: 16.9 mm · Height: 14.5 mm

6,80 EUR

Nos
BING Float cap Bing Original SRE, SRC, SRF, SRA
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For: Puch · Sachs · Zündapp Belmondo · DKW · Hercules · Kreidler · KTM

10001

BING Float cap Bing Original SRE, SRC, SRF, SRA

Manufacturer: BING · Component group Carburetor: Adjusting screws, float, etc. · Material: Aluminum · Carburetor type: SRA (1/11/35) Velux · Carburetor type: SRC · Carburetor type: SRE · Carburetor type: SRF · Ø outside: 43.5 mm · Height: 32.5 mm · Width across flats SW: 14 mm · Piaggio OEM number: A4587 · Sachs OEM no.: 0962 056 000

21,80 EUR

Shifter 2-speed Magura-Edition black
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For: Puch · Sachs · Zündapp Belmondo · DKW · Hercules

10008

Shifter 2-speed Magura-Edition black

Manufacturer: Magura · Material: Plastic · Surface: powder-coated · Material lever: Aluminum · Housing material: Aluminum · Color: black · Color: silver · Number of gears: 2 pcs · Ø inside: 22 mm · Total length: 145 mm

196,20 EUR

Not in stock

ESJOT sprocket 45 teeth 4-hole coaster black
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For: Puch · Sachs · Zündapp Belmondo · Cilo

10024

ESJOT sprocket 45 teeth 4-hole coaster black

Manufacturer: ESJOT · Material: Steel · Surface: powder-coated · Chain pitch: 1/2" x 3/16" · Chain type: 415H · Number of teeth: 45 pcs · Ø bolt circle: 105 mm · Ø inside: 94 mm · Ø mounting hole: 6.4 mm · Thickness: 4.5 mm · Hole spacing: 74 mm · Number of fixing points: 4 pcs · Color: black

69,20 EUR

swiing® revival 37 mm pin start slider Bing
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For: Puch · Sachs · Zündapp Belmondo · DKW · Hercules · Kreidler · KTM

10032

swiing® revival 37 mm pin start slider Bing

Ø outside: 3.5 mm · Total length: 37 mm · Manufacturer: swiing® revival parts

4,05 EUR

Chrome rear light - white

For: Universal · Puch · Sachs

10425

Chrome rear light - white

Test mark: none · Tension: 6 V · Ø Receptacle: 4 mm · Material: Plastic · Color: Chrome · Color: white · Bulb holder: BA9s · Width: 65 mm · Depth: 55 mm · Height: 45 mm · Battery operated: No · Brake light: No · Reflectors: Yes · Mounting type: Nuts & bolts · Number of fixing points: 1 pcs

13,90 EUR

BING Clamping spring Pressure pin Bing SRE, SSN, SRC, SRF
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For: Puch · Sachs · Zündapp Belmondo · Kreidler

11003

BING Clamping spring Pressure pin Bing SRE, SSN, SRC, SRF

Spring design: Special spring · Manufacturer: BING · Material: Spring steel · Pony OEM number: A4589 · Sachs OEM no.: 61-350

1,40 EUR

GPO 17" spoke set incl. nipple (2.9 x 188 mm) galvanized steel
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For: Universal · Puch · Sachs · Zündapp Belmondo

10337

GPO 17" spoke set incl. nipple (2.9 x 188 mm) galvanized steel

Manufacturer: GPO · Quantity: 36 pcs · Material: Steel · Surface: galvanized (blue) · Surface: galvanized (yellow) · Length from hook: 188 mm · Ø spoke: 2.9 mm · Ø spoke head: 5.7 mm · Nominal diameter (thread): 3.2 mm · Thread length: 11 mm · Nipple length: 14.7 mm · Ø nipple head: 8 mm · Ø Nipple neck: 5 mm · Hook length: 10.5 mm · Hook angle: 92 °

33,50 EUR

BING Float seal Bing 85
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For: Puch · Sachs · Hercules · KTM · Batavus

10345

BING Float seal Bing 85

Manufacturer: BING · Material: Cork · Component group Carburetor: Sealing, revising · Carburetor type: 85

6,80 EUR

BING Spring throttle slide Bing 17 & 18
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For: Puch · Sachs

10627

BING Spring throttle slide Bing 17 & 18

Spring design: Pressure spring · Carburetor type: 17 Catalyst · Carburetor type: 18 Catalyst · Manufacturer: BING · Ø outside: 12.4 mm · Total length: 39 mm

3,95 EUR

Breaker with cable (Budget) | Bosch / Ducati
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For: Puch · Sachs · Zündapp Belmondo · Tomos · DKW · Hercules · Kreidler · Zündapp · KTM · Rixe

10134

Breaker with cable (Budget) | Bosch / Ducati

Manufacturer: Quenching · Material: Steel · Ø axle: 4 mm · Ø mounting hole: 4.5 mm · Cable available: Yes · Number of fixing points: 1 pcs · Area of application: Original · Area of application: Standard · Cable length: 100 mm · Ø Internal flywheel: 90 mm · BOSCH OEM number: 1 217 013 025 · BERU OEM number: 0 340 100 710

7,95 EUR

swiing® revival nozzle needle Bing SRE, 85 & 17 / 18 (one groove)
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For: Universal · Puch · Sachs

10300

swiing® revival nozzle needle Bing SRE, 85 & 17 / 18 (one groove)

Manufacturer: swiing® revival parts · Component group Carburetor: Spraying · Carburetor type: SRE · Carburetor type: 17 Catalyst · Carburetor type: 18 Catalyst · Carburetor type: 85 · Ø outside: 2 mm · Total length: 36 mm · Number of grooves (needle designation): 1 pcs · Number of notches (needle clip): 4 pcs

6,80 EUR

swiing® revival wheel axle M10.5x1 x 175 coaster brake galvanized
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For: Puch · Sachs · Zündapp Belmondo · Cilo

10330

swiing® revival wheel axle M10.5x1 x 175 coaster brake galvanized

Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Ø shaft: 10.5 mm · Shank length: 95.6 mm · Thread type: MF10.5x1 (fine pitch thread) · Total length: 175 mm · Thread length: 34 mm · Thread length: 45 mm

27,60 EUR

BING Fuel inlet nut Bing 85
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For: Puch · Sachs · Hercules · KTM · Batavus

10849

BING Fuel inlet nut Bing 85

Manufacturer: BING · Nut type: Union nut · Thread type: MF8x1 (fine pitch thread) · Drive: External hexagon

4,50 EUR

Page 1 of 197

Entry into the 2-stroke business

The sale of the rolling bearing division to Svenska Kullagerfabriken (SKF) was a historic move that injected a lot of fresh capital into the company's coffers. Money that Ernst Sachs invested to a large extent in the research and development of accessory components for the automotive industry and small engines. A few years later, this decision would bear rich fruit and establish the reputation of the Schweinfurt-based manufacturer in the field of 2-stroke engines. The German company had recognised the signs of the times. The bicycle as a means of transport for the masses had not become obsolete, but the future of mobility in the 1930s demanded motorisation.

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The original Saxonette moped

The Schweinfurt-based company's answer was the Saxonette, a two-stroke, nose-piston engine with a displacement of 60 cm³ and an output of 1.2 hp, which could be installed in the rear wheel hub of bicycles. Bicycles equipped with this 2-stroke wheel hub engine were already travelling at a remarkable 25-30 km/h. However, the engine was particularly impressive due to its reliability. Overall, the concept of the engine for light motorbikes was a complete success and enjoyed strong demand. In the 1930s, up to 5000 units of the wheel hub engine left the Schweinfurt factory every year, but the unit was also built under licence by Victoria or Wanderer. Durability, low-maintenance operation and robustness were the hallmarks that characterised this little masterpiece of engineering. It was also these characteristics that became a genuine trademark of the stationary and mobile small and 2-stroke engines from the Schweinfurt manufacturer in the years that followed. The reputation of the indestructible and unbreakable Sachs engines was born, and it hardly mattered what powered the units. In addition to the Saxonette two-stroke engine, the company also developed motorbike and boat engines as well as stationary power units for industrial plants during this time.

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Der Sachs 50 – das Triebwerk des goldenen Töffli-Zeitalters

Nach dem Ende des Zweiten Weltkrieges untermauerte der Hersteller diesen Ruf weiter. Die Produktpalette wurde mit zahlreichen Neuentwicklungen von Aggregaten mit einem Hubraum bis 50 cm³ ergänzt. Besonders berühmt wurde der Sachs 50, der in unterschiedlichen Versionen in zahlreichen Töfflis verbaut wurde. Zahlreiche Hersteller im In- und Ausland setzten auf die Motoren aus Schweinfurt. Aus diesem Grund bürgerten sich für viele Mofas Doppelnamen ein. Neben dem Fahrzeughersteller wurde der Motorhersteller im selben Atemzug genannt. So erklären sich die Typenbezeichnungen wie Rixe-Sachs-Töffli.

Speziell und exklusiv für die Schweiz wurde die Version Sachs 503 entwickelt, die viele Jahre serienmässig in den Pony-Mofas der Schweizer Töfflischmiede Amsler sowie in den ALPA-Hödis des eidgenössischen Herstellers Stähli verbaut wurde. Der 503-Mofamotor war sowohl in einer gebläsegekühlten Version, also auch in einer noch robusteren fahrwindgekühlten Ausführung zu haben. Er leistete in der handgeschalteten Variante 0,8 PS bei 3000 U/min. Die Automatik-Modelle AAL, ABL, AB, AC und ADV waren etwas flotter und lieferten 1,2 PS bei 3800 U/min.

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A huge two-wheeler empire is born

It is a historic stroke of luck that the renowned and traditional Swiss moped makers were able to resist the Schweinfurt company's hunger for expansion. Fichtel & Sachs had a huge appetite for two-wheeler manufacturers in those years. In the post-war years, the company acquired majority shareholdings in numerous renowned German moped and vehicle manufacturers. The takeover was kept secret for a long time; the purchase of the long-established moped manufacturer Hercules was handled via straw men and only officially announced in 1965.

Partly because the Hercules mopeds had already been equipped with engines from Schweinfurt at the factory and the two companies cooperated closely, it was possible to conceal the takeover for a long time. When a golden age for mopeds was dawning in the mid-1960s and the moped boom was already making itself felt through the sharp rise in demand for mopeds, the group also swallowed up Zweirad-Union, which also built the legendary Victoria mopeds and DKW mopeds, among others. It was not only due to the reliability of the small engines produced by the Schweinfurt-based company that the majority of the moped fleet was equipped with a Sachs engine until the 1980s; the German manufacturer's expansive corporate policy also played a part in this. Nevertheless, the small powerhouse has confirmed its reliability to this day in thousands of mopeds that are still on the road with this engine.

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Has the 503 engine long been history?

The manufacturer Fichtel & Sachs was itself the subject of company takeovers and mergers in the 1990s. The former Schweinfurt engine manufacturer is actually still active in some areas today, although the company is now owned by ZF Friedrichshafen. Unfortunately, the 503 engine is long gone. In 1996, the production of all small engines with the S logo was discontinued. Fortunately, however, many of the engines are still running many years after the final production stop. This is due not only to the legendary reliability of the indestructible moped engine, but also to the fact that many moped enthusiasts look after and maintain their 503-powered scooters with exemplary care and passion.

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Nowhere is the freedom greater and the feeling of happiness stronger than at 30 km/h with the warm wind in your face.

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