Cheap expansion chamber available in Australia


New Member
Local time
3:37 AM
Mar 19, 2018
Hi, I'm looking for an expansion chamber for my 49cc china kit. At the moment I have the eBay banana pipe but I'm looking for something more for a decent price available in Australia.

Side note, I have done a few things to my bike and I am in the process of doing more. I have done the; Banana pipe, sanded down the stock slant head, new air filter, NGK B6HS plug, 36T sprocket, and a re-jet to 0.65 on a speed carb. I am also in the process of putting on a reed valve (Adapting 40mm OZ onto a 32mm intake with an adapter made on a lathe and mill and windowing the piston.).
(My current top speed on a flat is 52KPH)

Thanks in advance