ON THE SPEEDY 100 AND I BELIEVE 50 THE INLET MANIFOLD/REED ARE ABSOLUTELY THE MOST PATHETIC EXCUSE OF A DESIGN YOU CAN IMAGINE,1 LOOK AT IT TELLS YOU THE FLOW MUST BE CRAP DUE TO ELBOW IN INTAKE OF 90 DEGREES PLUS THE STOCK REED IS 1 SIDED MY MUM COULD DO BETTER!! IN THE STAGE 6/KOSO 1 GENTLE/SMALL BEND IS TEFLON COATED=MUCH IMPROVED FLOW AND YOU GET A PROPER V REED BLOCK WITH VULCANISED RUBBER TIP FOR BETTER REED LIFE + BETTER THAN CARBON REEDS(MORE SPRING) THIS IS THE BEST £34 (SCOOTER-ATTACK) THAT I`VE SPENT ON THE SCOOT.THE STOCK ITEMS BELONG IN A MUSEUM OR ON A FS1E ETC. NOW GOT EXTRA 3-4 MPH BUT ACCELERATION IS ON A DIFFERENT PLANET 100% THE DOGS B@LL@CKS RECOMMEND TO ALL SPEEDY PILOTS!! imp: imp: