Here you can find all single carburettors for motor bike 50cc with derbi euro 3 engine! Attention carburetor must be well chosen at purchase! Prefer quality at low prices initially. Then, take the following parameters into account: 1-Do you need a HARD or SOFT carburetor (depending on your intake pipe), the flexible mounting can be with rigid pipe sleeve on the flexible mountings avoid emulsions and facilitate therefore adjustments, high performance 2 ... Do you need a depression? (Depending on your tap if there is a depression on / off, depression can also be put on the pipe) 3-Do you need the ability separate lubrication? (If you want to keep the latter, a decision can also be installed on the pipe) 4-carburetor What size do you need? -Origine: 17.5mm max -Origine with unbridled pot: 19mm max -Small kit 50cc, pot, ignition ...: 21mm max -Small 70cc with little equipment: 24mm max-Kit 50cc very thorough with large equipment: 26mm max -Grosse 80cc or more configuration: 30mm max Boisseau flat or round? Generally, flat bushel provide responsive faster engine (they are shorter), they are also much less simple to set on low speed, low rpm ... This is why we usually recommend these carburetors for competition only and they are rarely mounted on a road machine! They are generally recommended on cylinders with exhaust or exhaust valve has a bar for physical reasons. The round bushel can be also very very powerful! They are also generally more suited to low speeds, has low speed and simpler to adjust, they better without accompanying valve cylinder engine exhaust, exhaust with a booster or round / oval. So they work nicely handle the 1/4 open, making it super road carburetors that did not graze everything goes ... they are generally much less greedy than the carburettor has flat bushel (especially those of low quality) .