NOS stock morini cylinder. This guy is a little weird. It's a cast iron cylinder and takes an m101 piston.

stock replacement piston for sachs mopeds!

These are size J (38.98mm), Motobecane part # 22279 still in their original packaging...wow!

These are size G (38.97mm), Motobecane part # 22278 still in their original packaging...wow!

Puch 50cc high compression cylinder head with the new style fin pattern.

38mm x 2mm piston FG ring. Fits on Puch, Tomos a3 and some Sachs pistons. Measure twice just to be sure!

Sold individually. If you need two buy two.

Replacement stock dual ring piston for puch maxi, newport magnum etc.

This is a high compression head for 70cc puch kits with the new style fins.

Puch Athena 45mm 70cc cylinder kit. This is the large reed block version, the 'mini gila" as we call it.

Used cylinder for Tomos a55. Comes with intake but no piston.

Honda hobbit / camino 46mm 70cc cylinder kit from Polini. Stupid fast and reliable cast iron cylinder.

OEM replacement decompression valve for Sachs 504 and 505 cylinders. Will also work great on the Sachs Athena cylinder kits.

Used but came off of a running bike. Comes with the cylinder, piston, piston rings and wrist clip. This bike was doing easily 35mph before I put a kit on it. You can slap this on and go.

Honda hobbit / camino 46mm 70cc cylinder kit from Polini. Stupid fast and reliable cast iron cylinder.

exxxtreme cast iron 44mm 60.2ccs of power kit for honda hobbit!!!

compatible with honda hobbit, camino, express, pa50, pa50II, nu50, nc50, etc.. ..

some express bikes may require minor fin cutting to fit, but well worth it for this raw power

is this real? yes. prepare to be shocked, and stocked. this kit is black painted cast iron. it's super durable and reliable. porting is simple for a long life of 44mm rippin it up man, man up! if you can handle this. extemo!

comes with cylinder, piston, wrist pin, clips and NO gasket set! yes, NO gasket set is included.

also comes with a special feature. it comes with a piston ring springy thing that you can put in before the lower ring. maybe it gives it some extra spring for supreme sealing and compression! or forget you ever saw it.

these don't come with gaskets. you can get them here.

Replacement 50cc piston ring for many stock motobecane cylinders.

Replacement 50cc piston ring for many stock Puch cylinders and the 38mm 50cc Puch Airsal cylinder kit.

ONLY ONE RING IS INCLUDED. TWO RINGS ARE SHOWN, YOU WILL RECEIVE ONE.

-38mm x 1.5mm GI

Universal piston ring measuring 44mm x 1.5mm with a GI enclosure. Used on many many kits. Check yours to see if ya need this one.

Used on lots of 44mm airsal kits and alu kits for puch, tomos and derbi.

Universal Piston ring measuring 45mm x 1.5mm with a GI enclosure. Used on many many kits including the puch 45mm Airsal kit. Check yours to see if ya need this one.

Tomos a35 44mm Airsal kit with everything you'll need.

Tomos a35 44mm Airsal kit with everything you'll need.

44mm 65cc Airsal cylinder kit for Derbi flatreed engines. The porting on this is awesome - 3 big transfers with 4 booster ports and a huge exhaust. Aluminum cylinder body with nikasil lining the bore.

Motobecane 39mm 50cc Airsal cylinder kit for any av7 or av88 engine.

46mm Airsal cylinder head for Puch e50 and za50. Super big fin for ultimate cooling power. Grab the matching 46mm 72cc cylinder kit!

Airsal 04031446

Gigantor 46mm 72cc Airsal cylinder kit for Puch e50 and za50. Super big fin for ultimate cooling power. This is the largest kit you can fit onto a Puch engine without boring the case! Massive intake and exhaust ports with 4 auxiliary boost ports.

Massive port 46mm 70cc cylinder for Peugeot 103 engines. Has three massive bridged port transfers and 4 booster ports plus a huge exhaust.

Tomos A3 44mm 70cc Airsal kit. Keep in mind this is the 10mm wrist pin version for A3 engines.

Tomos A35 38mm 50cc Airsal kit. Great as a stock replacement cylinder with a definite performance upgrade in speed!

Massive port 46mm 70cc cylinder for Peugeot 103 engines. Has three massive bridged port transfers and 4 booster ports plus a huge exhaust.

Tomos a55 44mm Airsal kit - massive fins for super cooling abilities.

70cc 43.5mm kit for Sachs 504 and 505 engines. Includes cylinder, head, gaskets, angled intake, piston, wrist pin, wrist pin clips, rings, m6 hardware and a set screw for blocking off the decomp.

Replacement 70cc 44mm airsal piston for the tomos 44mm airsal kits just in case you blew yours up. Or you can get just the 44mm piston ring for this.

45mm 70cc airsal kit for puch e-50 and za50.

Motobecane 70cc airsal cylinder kit for both av88 and av7. 45mm piston.

38mm 50cc airsal kit for puch e-50 and za50.

Replacement 70cc 45mm Airsal piston for the av7 and av88 motobecane 45mm 70cc Airsal kits just in case you blew yours up.

Replacement 70cc 45mm airsal piston for the puch 45mm airsal kits just in case you blew yours up. Or you can get just the 45mm piston ring for this.

New old stock piston for minarelli v1 engines. Measures 38.8mm. Comes withe piston, two 38mm x 1.5mm FG piston rings, wrist pin and clips.

80cc 48mm Athena Reed kit for Sachs 504 and 505 engines. Comes with Sachs style cylinder/head combo, piston, rings, reedblock, reeds, wrist pin and clips, as well as two intakes

Vintage line 38mm 50cc cast iron Metrakit cylinder for Derbi Piston Port engines. Includes piston, rings, wrist pin and clips and gasket set.

These are size E (38.96mm), Motobecane part # 22277 still in their original packaging...wow!

Replacement piston for Puch Gila 74cc kits made by Vertex. Comes with piston, rings, wrist pin and clips.

This is a "A" piston - 46.96mm.

Puch 47mm 74cc Gilardoni race cylinder kit. This is a perfect example of flawless manufacturing and performance. Set this thing up right and you'll be getting pulled over for speeding faster than you can say "it was worth it."

70cc 45mm Athena kit for Sachs 504 and 505 engines. Comes with Sachs style cylinder/head combo, piston, rings, wrist pin and clips.

NOS kreidler head for your kreidler engine.

Puch 50cc high compression cylinder head with the old style fin pattern.

Puch 50cc high compression cylinder head with the old style fin pattern.

BACK FROM THE DEAD

puch 65cc !!nikasil!! bore cylinder kit new in box with all gaskets ready to be mounted on any puch moped including but not limited to : Puch Maxi, Magnum, Dart, Cobra, Swinger, Pinto, Freespirit, Newport, Kromag; E50 (one speed) or ZA50 (two speed) engines. Some two speeds may have a tiny metal nub in the case that needs to be filed down in order to make these kits fit. It's super easy. For superior performance skip the bing route and use a dellorto 19-21 phbg on these to make them beastlike. Intakes usually available for one speeds, OR save some cash and take an old exhaust header from a tomos or italian bike and chop it off and make it the perfect o intake. If using the dellorto intake we sell get the clamp style dellorto, for the exhaust header intake use a rubber mount style dellorto. dreamy. Using a 19-21 phbg brings these kits to life and increases power throughout the whole range, no loss at all. plus we all know bings suck and are fully overpriced, hmm. no more cast in studs thank you based god.

product description has not been changed to retain the vintage lingo circa 2007. enjoy

***UPDATE 7/23/18 these now come from metrakit with an improved piston!! the locating pins are correctly pressed into place. the overall quality seems to be on par with that of the airsal replacement and should be great for many miles of ripping. please double check the ring gap n have no more worries! be free!***

gaskets included may differ from the ones depicted in the photos!

need a perfect head for this? look no further