KB Performance : Marko Glush told AMD that " our recently introduced piston upgrade options for M-8 engines fit the oil and water-cooled engines from 2017 to present with 4.250 " bore cylinders ." The company ' s 107 " to 124 " conversion and 114 "/ 117 " to 128 " conversion application pistons feature KB ' s valve pocket technology for up to 3 mm larger valves . The pistons have type 3 hard anodized crowns and top ring groove , with LINE2LINE abradable skirt coating . KB pistons are made in Carson City , Nevada , by United Engine & Machine ( UEM ); www . uempistons . com
Lyndall Racing Brakes : Recent new products from Paul Kittrell ' s San Marcos , Texas based factory include stock wheel replacement rotors - a bolt-on replacement for ' 14- ' 22 H-D Touring models with ' Prodigy ' or ' Enforcer ' wheels . Manufactured in high carbon stainless steel , they are an 11.8 " spoke-mounted rotor with five bolt holes and 6.7 " brake rotor pitch circle diameter ( PCD ). " They are a perfect match for our premium quality organic brake pads and will also fit H-D ' Aggressor ' front wheels when used with ' Enforcer ' style bolt hats ; www . lyndallbrakes . com
Magnum Shielding : The Pittsford , New York based manufacturer ' s handlebar installation kits have everything customers need for cable and brake line replacement on H-D models going back to 1996 and Indians back to 2015 . " What really sets our kits apart is our vast selection of sizes , colors and kit configurations ," according to Magnum ' s Reese Hurwitz - seen here left with father Scott and Engineering Manager Chris Hughson ; www . magnumshielding . com
All Balls Racing : Among the wide range of components relied on by custom V-twin shops , All Balls starter motors are manufactured with all-new components that have been selected and fine-tuned specifically for starting H-D V-twin engines . Product Development specialist Alex Geiger told AMD that " our starter clutches utilize 20 % oversize rollers and the idler gears are manufactured from cold-headed steel . End frames are cold chamber die-cast and machined on precision fixtures with armature hairpins resistance-fused to the commutator ." All starters are supplied with a 10 / 32 threaded output shaft , and a conversion bolt for the earlier 1 / 4-20 threaded output shafts to cover all Big Twins from 1989 thru 2005 ; www . allballsracing . com
Cometic Gasket : The ' Official Gasket ' brand of AFT has been " sealing championship engines since 1989 ." Jason Moses told AMD that recent new V-twin products from the Concord , Ohio based manufacturer have included " gaskets for Indian Big Twin , FTR and Scout applications such as Big Bore head gaskets for 2020 and up Indian Challengers in . 020 " MLS ( Multi-Layer Steel ) and . 010 " rubber coated steel base gaskets ; www . cometic . com
34 AFTERMARKET MOTO DESIGN - MARCH 2023 www . AMDchampionship . com