Here is the direct competitor of the AIRSAL X-trem, it is the BRK 88cc diameter 50mm. Like the AIRSAL, it has a 45mm stroke. First of all you should know that this kit is very powerful for a really ridiculous price for the good finish and the quality of the materials.
The cylinder is therefore a Ø50mm, it is intended for a 45mm stroke crankshaft with a 90mm original size connecting rod like the special 88cc AIRSAL crankshaft or BARIKIT stroke 45mm. This Ø50mm and 45mm stroke ratio offers no less than 88, 35cc. Admission level, BARIKIT has remained simple with a 5 transfers just like the team and many other cylinders, the front side transfers are designed to go under the exhaust, the base is also well designed to offer performance and sweeping, you The crankcases must be aligned with the cylinder to get all the power out of this kit.
The exhaust is therefore a very large bar model. The diagrams are very high, to make this kit talk, we therefore recommend a good Ø28mm carburetor and a good racing exhaust. This racing version is therefore equipped with the famous decomposable cylinder head (con culatin / cylinder head), this cylinder head offers better cooling and therefore obviously additional performance, the block is an incoming model to preserve a well-centered combustion chamber.
The combustion chamber is a high compression frustoconical version, we will regret a finish at this level not high enough, no chamber polishing, fairly low-end aluminum. Apart from that, BARIKIT being one of the biggest piston manufacturer, the quality is very present, the piston is the sapphire blue (blauzafir) model, so it has a blue graphite treatment. We regret the absence of a preparation on the rear piston to optimize the sweep. In conclusion, it is a very good kit, excellent quality / price ratio, the performances are there especially at high speed, it is the maximum power which is aimed as well as the couple.
We recommend this kit with at least : Ø28mm carburetion, 45mm BARIKIT or other stroke crankshaft and reinforced bearings, ignition supporting high speeds, racing exhaust suitable for high diagrams, cold spark plug, 100% quality synthetic oil, oil pump removal ... In addition to this, you need to know more about it.
As an option we offer a stage 1 preparation, this preparation is a modification of the channels and the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. An improvement to the piston and the bottom of the skirt is also included in this modification. Allow a little extra time for this preparation!
