44mm Exhaust Pipe With Silencer for 2 Stroke 80cc 66cc 60cc 49cc Engine Gas Motorized Bicycle Motor Bike Parts Black

good day motorized bicycle gear heads, firstly it is true this is louder than your drill sargent, but people the power gains esp over flexable exhaust is crazy flex poopoo style held bike back badly and we all know factory pipe just dangeling down there waiting to ruin your day, its true most time either snaps studs or cause crash. now heres the trick replace factory with this remove allen bolt from clutch cover dig up same style thread bolt but a lil longer bolt up to cover with welded tab. remember that factory pipe sling it into vice cut about 2in from end. now with pipe still in vice heat evd withtorch straighten out as best as able slide that baby into end of this exhaust should fit snuggly use factory clamp to rig up stable mount to rear of bike and boom all the power from this awesome ppipe with no angry neighbors. forgot to mention this version imo is by far best one reason is its 2 piece so its more adjustable than solid versions and safer on you and your mmotor mounts reason is were its spring tension held together it is able if needed to flex and move instead of tearing away yourexhaust studs and ruining your ride and day. oh and its cheap ompared to most other restrictive flow pipes with its resonance chamber bike will be peppy and happy. what got to lose sellers got 30 day whateer warranty refund or replace cant beat it if dont like it return it and buy a diff. thanks stay safe out there,

Work great

Fits good sounds beast (more like a yz 80 then a bicycle ) descent bump in power ...i do wish it was a little longer so it went out towards the back of the bike more but not a big deal other then that it's a great pipe for the price

Had no fitting issues with this pipe. The workmanship is good and so are the welds. For those that say the spring mounts are welded out of alignment it may be that it was intended to pull on an angle in opposite directions as it works fine. Sure is hard to get the springs on. Better eat your Wheaties.The work I did to mount it was file the mounting flange flat and grind out just a bit of the weld to clear for the screw heads with washer.I made and aluminum 3/8 rod with 6mm stud in each end and screwed one side as a clutch cover bolt and made it longer to but a lock nut on the back.The other end is a washer, a rubber washer, the bracket then another rubber washer , steel washer and lock nut.I had to drill and file another hole in the bracket to line up with the stud.I have it mounted on a test bike that I test out ported motors.I can't comment on peak performance as I switch from gutted stock pipes and various carb combos.Like stock NT, a modified NT with key holed bore. A Bofang and a cheap HP carb.The key holed NT is taking a 3/8 end mill and cutting the top of the carb bore through to elongate it to increase the volume and flow. Just cut up to the point of your intake diameter on top.I will be fitting a screw in lawnmower muffler to the end of this pipe to easily remove and install at will.For the price I payed under 35.00 and I did not have to bend it to fit it is sure worth it.

Very well made .. I'm impressed for the money spent. Like stated it's loud until I modified stock muffler and joined it with expansion exhaust.. what a difference it has made for this bike.. the motor was bougie lacked any real power now with this new exhaust 5 times the power and looks really cool.. money well spent ... the product is well made good looking I will be buying another for my 3rd bike which is a 100cc can't wait to feel the power increase on it.. get one it's a game changer for the 80cc. You won't be disappointed

I will tell you more about it but my carburetor is messed up so haven't been able to really appreciate it yet or give it a shot

This pipe is heavy duty, it seats together very well in the springs or extra strong and it takes a bit of force to get them clipped together. Once they're together they're not coming apart unless you want them to. Amazing sound the tone that this pipe puts off is awesome. The expansion chamber really does make a difference on my top end speed and my acceleration.

It came missing a bolt to attach it to the engine (stock is to short), and no gasket between the manifold and muffler. Otherwise it fit fine, and bolted on easy. Use lock tight, though. Added power, and definitely some noise! Kind of like riding a chainsaw. I might add a wrap to protect my leg, but you'd only make that mistake once 😁.