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 Dr Pulley GY6 50 Dr Pulley GY6 50 16X13 Slider WeightsDr Pulley variator for GY6 50 coming as well as Stage 6 Many many more call if you need help 16X13 is the size weight the Honda Ruckus uses, by adding the Dr Pully weights you get better performance from your scooter, weights should be changed when the show wear. Kymco Super Nine 2T LC and AC also uses all GY6 trans parts including weights variators and clutches 16X13 is also most common size for four stroke 50cc scooters. This size 16X13 can also be found in Kymco scooters from the Super 8 and Super 9 plus Agility and People 50 Honda Ruckus plus many others. Most stock sizes we find in chinese scooters are 6.5-8.5 grams, a 6-6.5 gram weight from DR Pulley is used often in our shop going down to 5 for heavier riders for that kick in take when adding cylinder kits. We are only going to carry these sizes for upgrades only. We have found that 6 and 6.5 for lighter weight riders are doing the job well for take off and top speed. This is what we are finding in our shop. For screaming off line use 4-5.5gram, 5.5 is a good number for heavier riders that need an extra push up hill and take off. Best bet is add NCY Golden Pulley shown here along with weights for best performance. Dr Pulley sliding roller weights add performance as an easy upgrade when adding a variator and kelvar belt for a trans upgarde to get your scooter up to speed faster. Heavier roller weights = slower take off speed, more acceleration, = higher maximum speed. Lighter roller weights =faster take off speed, less acceleration = lower achievable speed. Dr. Pulley Roller Weights The latest roller weights to hit the market and the most advanced weights available. These sliding rollers perform up to 20% better than standard round weights and last up to 18% longer with 22% less performance material loss. The weights have several unique features such as their composite material being nylon for faster performance. • Made of unique tribological material SL-9T and SL-9TS (oilless PA46) • Low friction coefficient / Low wear / High temperature resistance • Aluminum compatible; No abrasive fibers (glass fiber or carbon fiber) • Fastest Roller Weights available |  | 48 Lower States Only
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