50cc cylinder kit for all 50cc 4-stroke Chinese scooters using GY6 139QMB / QMA engines. An ideal low-cost replacement kit for worn or damaged top ends. 50cc cylinder kit for...
To increase the power of your 50cc 4-stroke, Polini offers you this Polini 80cc Alu 4-Stroke AC cylinder piston kit at a rather advantageous price! With excellent manufacturing quality (“made...
88cc cylinder for you, although this is not a bolt-on item for most QMB 139 bikes. Most of the time, engine cases need to be cut. Order part number 1400-1001,...
Cylinder Material: primary aluminum alloy with high silicon content, hardened and tempered, cylinder liner with application of silicon carbides in a galvanic nickel matrix and cross-smoothing by two diamond passes,...
Seal for Malossi 88cc 139QMB/QMA cylinder kit. Suitable for several 4-stroke models such as Kymco Agility 4T, Sym Simply 4T & more. Cylinder: 3113243, Piston: 3413245 / 3413245.A0 / 3413245.B0...