70 cc big bore cylinder kit for Yamaha- Minarelli vertical engines ( CW )
Newly available from Italian specialist Athena , " innovative technical solutions and unprecedented performance " are said to be the hallmarks of this new big bore cylinder kit for vertical air-cooled 70 cc Yamaha-Minarelli engines . Used in well-known scooter models from the likes of MBK Booster , Yamaha BWs and the legendary Aprilia SR , this special cylinder kit features patent-pending technical solutions for power that can reach as high as 19 hp . Features include an entirely reinvented fastening system with the normal stud-based cylinder head and cylinder clamping replaced by special bolts , similar to the system used in racing applications .
This solution reduces cylinder expansion , thereby ensuring more efficient clamping , and allows for a sophisticated redesign of the intake and exhaust port . The intake features a CNC-machined fifth port that ensures a greater flow of fresh intake gases , while the oversized exhaust port has an oval geometry with side boosters - a solution that cannot be found on any other cylinder of this type on the market today . The result is the highest performance cylinder kit of its kind ever conceived . A special flat-head piston has been developed with a CNC-machined window on the casing , which is designed to maximise the intake flow , thereby delivering greater pressure on the pump casing and better lubrication of the roller cage . This is just one of a large range of replacement and upgrade components available from Athena for scooters equipped with this engine , such as racing crankshafts , a 28 mm carburetor with dedicated air filter , and the Big Valve System - an intake system with reed valve that further increases and optimises intake gas flow and , therefore , engine operation .
ATHENA Alonte , ITALY Tel : + 39 0444 727272 info @ athena . eu www . athena . eu
LV-10 Full Black
Italian designed exhaust brand LeoVince has added to its popular LV-10 slip-on line with its new Full Black - " for those who love darker tones ". The result of its collaboration with the best Moto2 and Moto3 teams , and of the knowhow acquired from LeoVince ' s many years of experience in MotoGP and SBK competitions , it says it " developed an extremely compact silencer to ensure maximum lightness , the best performance and the unmistakable LeoVince racing sound ".
Manufactured entirely from AISI 304 stainless steel , the LV-10 Full Black body sports a total matt black finish , both on the body and on the inlet and outlet end cap .
Unlike the LV-10 Black Edition , the LV-10 Full Black is laser marked with the LV " Racing " logo . The same high-temperature resistant LV sticker used in Moto3 is supplied in the package , " which will embellish the LV-10 Full Black , giving it the racing look that your customers are looking for ". It will be available starting from spring 2022 .
LEOVINCE Monticello d ' Alba ( CN ), ITALY info @ leovince . com www . leovince . com
40 INTERNATIONAL DEALER NEWS - DECEMBER 2021 / JANUARY 2021 www . idnmag . com