40 mm tuning cylinder made of aluminum with 54 cc displacement suitable for mopeds / mopeds with Sachs 503 2AL, AAL, 2BL, ABL CH engine.
The racing kit offers a performance increase over the entire engine speed range, with a focus on low engine speeds and torque. Compared to the original cylinder, this racing cylinder has had the seal removed and the intake enlarged. The overflow channels have also been enlarged and the piston skirt has been optimized to improve the timing. The exhaust port has also been designed at a favorable flow angle.
| Nominal diameter | 40 mm |
| Manufacturer | AKOA |
| Material | Aluminum |
| Surface | Nickel silicon carbide (colloquially known as Nikasil) |
| Displacement | 54 ccm |
| Crankshaft stroke | 43 mm |
| Ø cylinder neck | 45.5 mm |
| Ø Outlet outside | 25.8 mm |
| Ø outlet inside | 18.5 mm |
| Ø Inlet inside | 14 mm |
| Hole spacing inlet | 32 mm |
| Hole pattern [mm] | 40 x 60 / 37 x 37 |
| Thread inlet | M6x1 (standard thread) |
| Number of fixing points | 4 pcs |
| Ø piston pin (B) | 12 mm |
| Outlet type | clamped |
| Area of application | Tuning |
| Decompressor | No |
| Sachs | 503 - AAL , ABL , 2AL / 2BL |
Ratings
Accessories & related products
GPO exhaust set cigar Ø 28 / 60 mm chrome | Sachs 503 2AL, 2BL
Manufacturer: GPO · Material: Steel · Surface: chrome-plated · Total length: 535 mm · Color: Chrome · Ø Flame tube outside: 28 mm · Exhaust type: Cigar · Mounting type: Screwed clamp · Flame tube attachment: Plug connection clamped
EUR 122.90
Not in stock
Hot 
swiing® ingenious 15 mm carburetor camouflaged | Sachs 503
Nominal diameter: 15 mm · Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Width: 50 mm · Carburetor type: SRE · Height: 95 mm · Mounting type: Plug connection clamped · Ø Internal connection: 20 mm · Ø Inside entrance: 15 mm · Ø Output inside: 15 mm · Ø Air filter connection: 20 mm · Ø fuel hose connection: 6 mm · Total length: 66 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Hand choke · Area of application: Tuning · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle block: 2.17 · Nozzle size: 62 · Clamping screw torque (max.): 4 N/m
EUR 98.30
swiing® ingenious 15mm carburetor set HG long | Sachs 503
Manufacturer: swiing® ingenious parts · Camouflaged: No · Component group Carburetor: Carburetor complete · Color: black · Carburetor type: SRE · Nominal diameter: 15 mm · Ø Internal connection: 20 mm · Ø Inside entrance: 15 mm · Ø Output inside: 15 mm · Ø Air filter connection: 20 mm · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Hand choke · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle block: 2.17 · Nozzle size: 62 · Mounting type: Flange · Mounting type: Plug connection clamped · Hole spacing inlet: 32 mm · Clamping screw torque (max.): 4 N/m · Total length: 66 mm · Total length: 165 mm · Width: 50 mm · Width: 68 mm · Height: 52 mm · Height: 95 mm · Area of application: Tuning
EUR 209.10
BAD ASS Ø 41 mm "Pandora" tuning cylinder | Sachs 503, 50/2, 502
Nominal diameter: 41 mm · Manufacturer: BAD ASS · Material: Gray cast iron · Surface: sandblasted · Displacement: 55 ccm · Crankshaft stroke: 42 mm · Ø cylinder neck: 45 mm · Ø Outlet outside: 26 mm · Ø outlet inside: 23 mm · Ø Inlet inside: 19 mm · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 32 mm · Ø piston pin (B): 12 mm · Outlet type: clamped · Number of fixing points: 4 pcs · Hole pattern [mm]: 40 x 60 / 37 x 37 · Camouflaged: No · Area of application: Tuning
EUR 276.80
BAD ASS Ø 43 mm "Pandora" BigBore tuning cylinder | Sachs 503, 50/2, 502
Nominal diameter: 43 mm · Manufacturer: BAD ASS · Material: Gray cast iron · Surface: sandblasted · Displacement: 63 ccm · Crankshaft stroke: 42 mm · Ø cylinder neck: 45 mm · Ø Outlet outside: 26 mm · Ø outlet inside: 23 mm · Ø Inlet inside: 19 mm · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 32 mm · Ø piston pin (B): 12 mm · Outlet type: clamped · Number of fixing points: 4 pcs · Hole pattern [mm]: 40 x 60 / 37 x 37 · Camouflaged: No · Area of application: Tuning
EUR 393.70
Explore categories from Cylinder
Moped fans also bought
BING O-ring Bing SRE & 85, Ø 20 mm
Place of use: Carburetor · Manufacturer: BING · Material: Rubber · Color: black · Surface: raw · Number of components: 1 pcs · Ø inside: 17.2 mm · Ø outside: 20 mm · Cord thickness: 1.4 mm · Area of application: Standard · Pony OEM number: A4281 · Sachs OEM no.: 0250 160 101
EUR 3.55
NSK BO15 shoulder ball bearing 15/40/10 (A4502)
Bearing cage: Brass cage ball-guided · Inner ring width: 10 mm · Manufacturer: NSK · Material: Brass · Material: Steel · Surface: blank · Stock number: BO15 · Bearing type: Shoulder bearing · Width: 10 mm · Ø inside: 15 mm · Ø outside: 40 mm · Ball bearing closed: No · Area of application: Standard · Pony OEM number: A4502 · Sachs OEM no.: 0932 007 001
EUR 30.60
Hot
swiing® ingenious 15 mm carburetor camouflaged | Sachs 503
Nominal diameter: 15 mm · Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Width: 50 mm · Carburetor type: SRE · Height: 95 mm · Mounting type: Plug connection clamped · Ø Internal connection: 20 mm · Ø Inside entrance: 15 mm · Ø Output inside: 15 mm · Ø Air filter connection: 20 mm · Ø fuel hose connection: 6 mm · Total length: 66 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Hand choke · Area of application: Tuning · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle block: 2.17 · Nozzle size: 62 · Clamping screw torque (max.): 4 N/m
EUR 98.30
swiing® revival air filter Racing | Sachs 503
Manufacturer: swiing® revival parts · Camouflaged: No · Material: Plastic · Color: black · Width: 68 mm · Filter type: Racing screen · Height: 52 mm · Mounting type: Plug connection clamped · Ø Internal connection: 20 mm · Total length: 165 mm · Area of application: Tuning
EUR 73.70
swiing® ingenious 15 mm intake manifold long version | Sachs 503 2AL, 2BL
Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: No · Ø inside: 15 mm · Ø External connection: 20 mm · Mounting type: Screws · Hole spacing inlet: 32 mm · Number of fixing points: 2 pcs · Total height: 80 mm · Thread type: M6x1 (standard thread) · Height flange center hole: 70 mm · Total length: 70 mm · Area of application: Tuning · Pony OEM number: A2176
EUR 73.70
swiing® revival ball bearing countershaft | Sachs 50/2, 50/3, 50/4, 503 2AL/2BL (A2531)
Bearing cage: Sheet steel cage ball-guided · Inner ring width: 25.6 mm · Manufacturer: swiing® revival parts · Bearing clearance: CN (standard) · Material: Steel · Stock number: E15 · Bearing type: Deep groove ball bearing · Width: 8 mm · Ø inside: 15 mm · Ø outside: 35 mm · Thread type: MF20.8x1 LH (fine/left-hand thread) · Area of application: High End · Area of application: Standard · Pony OEM number: A2531 · Sachs OEM no.: 0286 079 105
EUR 61.40
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
