Tuning kits for performance
Kits with extra power
GPO tuning set 43.5 mm (Metrakit replica) | Puch E50 / ZA50
Nominal diameter: 43.5 mm · Manufacturer: GPO · Material: Aluminum · Material: Gray cast iron · Material: Steel · Displacement: 64 ccm · Crankshaft stroke: 43 mm · Ø cylinder neck: 47.8 mm · Ø piston pin (B): 12 mm · Outlet type: straight · Hole pattern [mm]: 44 x 44 · Decompressor: No · Camouflaged: No · Area of application: Racing · Area of application: Tuning
EUR 427.00
Malossi tuning set 43 mm | Piaggio SI, Bravo, Grillo
Nominal diameter: 44 mm · Manufacturer: Dell'Orto · Manufacturer: Malossi · Manufacturer: NGK · Manufacturer: SITO · Manufacturer: swiing® revival parts · Displacement: 65 ccm · Crankshaft stroke: 43 mm · Ø piston pin (B): 10 mm · Ø piston pin (B): 12 mm · Outlet type: clamped · Decompressor: Yes · Camouflaged: No · Area of application: Tuning
EUR 444.80
swiing® ingenious tuning set 44 mm | Zündapp Belmondo
Nominal diameter: 44 mm · Manufacturer: Vertex · Manufacturer: swiing® ingenious parts · Displacement: 65 ccm · Crankshaft stroke: 42 mm · Thread inlet: M6x1 (standard thread) · Ø piston pin (B): 12 mm · Outlet type: slanted · Thread outlet: M6x1 (standard thread) · Decompressor: No · Camouflaged: No · Area of application: Tuning
EUR 652.50
Not in stock
swiing® ingenious tuning set 44 mm | Puch E50, ZA50
Manufacturer: GPO · Manufacturer: NGK · Manufacturer: swiing® ingenious parts · Camouflaged: Yes · Displacement: 65 ccm · Nominal diameter: 44 mm · Decompressor: No · Ø piston pin (B): 12 mm · Outlet type: straight · Area of application: Tuning
EUR 367.70
What more cubic capacity brings
Original drives. Tuning drives more freely.
A tuning cylinder gets more out of the engine without making it complicated.
Better response behaviour, more torque, noticeably more pull.
No witchcraft. Just clean technology.
Ingenious cylinders
swiing® ingenious cylinders are not loud, they are built right.
Clean channels, harmonious timing, honest performance - with a high-quality finish.
Made for mechanics who want to ride.
Lay your cards on the table
Performance is not a feeling. Performance is measurable.
At our events, we show you what your setup is really capable of.
Before the conversion. After the conversion. Directly comparable.
Events with test bench
2 May - Motorcycle meeting Oberbüren
13-14 June - Italian Piaggio Days
16 August - 2nd meeting of the Töffliclclub Ritzelflitzer
5 September - Hinterhof Sause 2.5
We are coming to you
We'll be on the road again this year.
With tools, expertise and cool merchandise.
Come by & talk shop.
New in the range
swiing® ingenious exhaust manifold 28 mm | Sachs 503 AB / AC without catalytic converter
Surface: chrome-plated · Manufacturer: swiing® ingenious parts · Material: Steel · Color: Chrome · Ø outside: 28 mm · Ø inside: 26 mm · Total length: 345 mm · Mounting type: Stud bolts & nuts · Number of fixing points: 2 pcs · Hole spacing outlet: 50 mm · Flame tube attachment: Plug connection clamped
EUR 59.20
swiing® ingenious resonance exhaust "TT" Ø 28 / 70 mm chrome | Puch Maxi S
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: chrome-plated · Color: Chrome · Total length: 985 mm · Ø Silencer: 70 mm · Ø Flame tube outside: 28 mm · Exhaust type: Cigar · Mounting type: Welded lug · Flame tube attachment: Nuts
EUR 148.20
swiing® ingenious exhaust manifold 28 mm chrome | Puch Maxi S / N, X30 NS / NL
Surface: chrome-plated · Manufacturer: swiing® ingenious parts · Material: Steel · Color: Chrome · Ø outside: 28 mm · Ø inside: 25.3 mm · Total length: 302 mm · Mounting type: Stud bolts & nuts · Number of fixing points: 2 pcs · Hole spacing outlet: 42 mm
EUR 41.40
Homoet exhaust "P4" Ø 28 mm black | Tomos A3 / A35
Manufacturer: HOMOET · Material: Steel · Surface: powder-coated · Color: black · Total length: 900 mm · Ø Silencer: 50 mm · Number of fixing points: 3 pcs · Mounting type: Nuts & bolts · Ø Flame tube outside: 28 mm · Exhaust type: Cone / double cone · Flame tube attachment: Stud bolts & nuts
EUR 225.30
TECNO Exhaust Circuit blank | Hercules Prima, Optima
Manufacturer: TECNO · Material: Aluminum · Material: Steel · Surface: varnished · Total length: 920 mm · Ø Silencer: 50 mm · Number of fixing points: 3 pcs · Mounting type: Nuts & bolts · Ø Flame tube outside: 25 mm · Exhaust type: Snail
EUR 130.40
GPO speedometer drive 16" (for VDO speedometer cable) | Piaggio Ciao, SI, Bravo
Material: Aluminum · Manufacturer: GPO · Place of use: left · Place of use: right · Total height: 10 mm · Ø axle: 11 mm · Wheel size: 16 " · 4-edge speedometer cable: 1.8 mm · 4-edge speedometer cable: 2.6 mm · Ø mounting hole: 11 mm · Ø outside: 41 mm · Thread type: MF10x1 (fine pitch thread) · Piaggio OEM number: 141303 · Piaggio OEM number: 186235 · Piaggio OEM number: 274958
EUR 29.50
mk-Merch pannier bag "vintage" brown
Manufacturer: mofakult Merch · Material: Canvas · Area of application: Road use · Color: brown · Total length: 120 mm · Height: 300 mm · Width: 400 mm · Number of fixing points: 4 pcs · Mounting type: Strap · Mounting type: Tab · Distance to each other: 220 mm · Belt length: 140 mm
EUR 106.70
mk-Merch saddle bag large brown
Material: Imitation leather · Manufacturer: mofakult Merch · Total length: 55 mm · Width: 175 mm · Height: 130 mm · Color: brown · Mounting type: Strap · Mounting type: Tab · Number of fixing points: 2 pcs · Distance to each other: 100 mm · Belt length: 160 mm · Area of application: Road use
EUR 29.50
In good hands
Engines for Sachs, Puch and Piaggio are completely dismantled, checked and neatly rebuilt here. Wheels are spoked, conversions are planned and realised, restorations are carried out with patience. Not according to a scheme, but according to condition and requirements.
Why does this make sense? Because experience makes the difference. A professionally overhauled engine runs more smoothly, lasts longer and doesn't make you wonder. You save yourself detours, reworking and half solutions. Your motorbike won't come back faster, but better. And that's what it's all about.
Remember setups
Ideas come quickly. Parts are forgotten just as quickly.
With the Kultklub wish lists, you can collect setups, memorise conversions and plan your next project. All in one place.
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
