Originally Posted by joe of loath

The best website for hop ups is rcmart.com. a huge selection! but don't be tempted by alloy, it's heavy and slows you down, and when you crash it bends. If you want to make it lighter (and therefore faster) get the 3racing graphite chassis.

When you say more speed on short straights and less on long ones, I assume you mean faster acceleration? If so, ask the other racers what ratio they are using, and use the chart below to work out which pinion gear you need (the stock spur is 70t).



Hope this helps
Joe