Solid-flange crankshaft for Puch E50 engines installed in Puch Maxi S / N mopeds.
The crankshaft, with its original 43 mm stroke, is made of forged steel, making it tougher and more durable than standard crankshafts.
To ensure perfect balancing and pre-compression of the crankshaft, the balancing holes are sealed with tungsten plugs.
The connecting rod eye has a diameter of 17 mm. This allows for the use of different needle bearings depending on whether a 12, 13, or 14 mm piston pin is used.
Total length of the clutch-side journal: 75 mm
Total length of the ignition-side journal: 67 mm
Ø 1st step (clutch side): 22 mm
Ø 2nd step (clutch side): 17 mm
Ø 3rd step (clutch side): 15 mm
Ø Step (ignition side): 17 mm
Ø crankshaft journals: 70 mm
Width of crankshaft journals: 34 mm
Ø connecting rod eye: 17 mm
Connecting rod length: 90 mm
Stroke: 43 mm
Note: The needle bearing is not included. It must be ordered separately.
Additionally, the housing must be cut out in the middle so that the reinforced connecting rod does not rub against the housing. You can find instructions from the manufacturer via the download link.
For the crankshaft, the bearing set for the older model with a 12 mm wide inner bearing ring can be used.
A quality product from the SRT brand.
| Manufacturer | SRT |
| Cheek type | Full cheeks |
| Crankshaft stroke | 43 mm |
| Ø piston pin (B) | 12 mm, 13 mm, 14 mm |
| Connecting rod length center-center | 90 mm |
| Total length of crankpin on clutch side | 75 mm |
| Total length crankpin ignition side | 67 mm |
| Ø crank webs | 70 mm |
| Ø Connecting rod eye | 17 mm |
| Ø Bearing seat (clutch side) | 17 mm |
| Ø Bearing seat (ignition side) | 17 mm |
| Wide crank webs | 34 mm |
| Area of application | Standard |
| Puch | E50 |
Accessories & related products
Rito Crankshaft Racing | Puch E50
Dimension needle bearing: 12 / 15 x 15 mm (axe 12) · Manufacturer: Rito · Material: Steel · Cheek type: Full cheeks · Crankshaft stroke: 43 mm · Ø piston pin (B): 12 mm · Thread type: MF10x1 (fine pitch thread) · Connecting rod length center-center: 90 mm · Total length of crankpin on clutch side: 74 mm · Total length crankpin ignition side: 67 mm · Thread length: 11 mm · Thread length: 14 mm · Ø crank webs: 69.9 mm · Ø Connecting rod eye: 15 mm · Ø Bearing seat (clutch side): 17 mm · Ø Bearing seat (ignition side): 17 mm · Area of application: Racing · Area of application: Tuning · Wide crank webs: 34 mm · Length 1st paragraph: 9 mm · Length 2nd paragraph: 14.5 mm · Length 3rd paragraph: 25 mm · Ø 1st step (on the coupling side): 22 mm · Ø 2nd shoulder (on the clutch side): 17 mm · Weight: 970 g · Ø 3rd step (on the clutch side): 15 mm · Length of shoulder (ignition side): 26.3 mm · Number of gears: 1 pcs
EUR 175.40
Explore categories from Engine block
Moped fans also bought
EBR fork with lock black | Puch Maxi
Manufacturer: EWC · Material: Steel · Surface: chrome-plated · Surface: varnished · Adjustable: No · Spar end distance (center-center): 120 mm · Ø outer head tube: 26.2 mm · Ø head tube inside: 22.3 mm · Ø spars: 23 mm · Head tube length: 180 mm · Total length: 580 mm · Thread type: MF26x1 (fine pitch thread) · Fork bridge - center wheel axle: 385 mm · Distance brake cam to wheel axle center-center: 40 mm · Color: Chrome · Color: black · Thread length: 57 mm
EUR 183.50
Handlebar fork plate 28.5 cm chrome (1A quality) | Puch Maxi
Material: Steel · Surface: chrome-plated · Fork plate holder length: 75 mm · Height: 285 mm · Ø outside: 22 mm · Length handlebar ends: 160 mm · Clamping diameter: 22 mm · Crossbar: Yes · Ø Strut: 10 mm · Strut length: 240 mm · Mounting type: Fork plate · Width: 635 mm
EUR 45.80
Polini 43.5 mm cylinder kit reed valve with head | Puch
Manufacturer: Polini · Material: Aluminum · Surface: Nickel silicon carbide (colloquially known as Nikasil) · Displacement: 65 ccm · Crankshaft stroke: 43 mm · Ø piston pin (B): 12 mm · Nominal diameter: 43.5 mm · Ø cylinder neck: 48 mm · Ø outlet inside: 22 mm · Inlet window: 26 x 21 mm · Hole spacing inlet: 32 mm · Hole spacing inlet: 39 mm · Thread inlet: M5x0.8 (standard thread) · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 x 44 · Outlet type: straight · Camouflaged: No · Thread outlet: M6x1 (standard thread) · Number of fixing points: 4 pcs · Area of application: Racing · Area of application: Tuning
EUR 458.80
Working late? Evening hours on Thursday until 20:00
