Earlier this spring a good customer of ours gave me a call
about a possible good deal he found on acquiring an 09 Aprilia SR50 Scooter
with the Piaggio engine and wanted to know if it was a quality scooter and if
we could work on it. Immediately my response was an emphatic yes, get it!
Aprilia SR50’s are Italian quality and highly tunable. So he went ahead and
purchased it. Keep in mind his main bike is a CBR 1000. As soon as he had
possession of the scooter he came by DMW for a once over and shortly after he
calls again wanting more speed. The SR50
is by far one of the fastest 50cc scooters I’ve ever seen. I test road it and
was able to hit 45mph just on our street, but it wasn’t enough for him.
We suggested a Leo Vince Exhaust. The LV exhaust comes with
roller weights, and clutch spring. He performed the installation himself and
was able to get better performance; an increased of top end speed to 52mph!
That was still not enough for him so he asked, “What is the next stage”? Stage
II was to tune the transmission with a Malossi Variator, Clutch Springs, and
Torque Spring, then test it on our Dynojet SD12. With these upgrades we were
able to increase power transfer to the wheels and achieved a top speed of
56mph. He was happy, but it still wasn’t enough.
A few weeks later he calls cause his starter gear failed and
while in the shop he asks the question again. “What is the next stage? Can I do
60mph?” I believe we can, Stage III would consist of quite a few parts (Malossi
Racing Cylinder, and Head, Air Intake, Reeds, ECU remapping, DR. Pulley Racing
Clutch, Final Drive Gears, etc etc…) and extensive Dynojet SD12 tuning. He
agreed and by the end of the process we were able to gain a whopping 1.58HP and
.85 ft/lbs of torque from our Stage I results. Yielding a top speed on the
Dynojet SD12of 72mph! Mission accomplished!!
- *Thanks David Dodds for your feedback and support! We truly appreciate you trusting us with your fine machine and allowing us to perform our #ScooterMagic! - Junior Padilla (Scooter Tech)
Here's what our customer David Dodds has to say (FB screenshots):
Dynojet SD12 Results:
Green: Stage II
Red: Stage III
Blue: Stage III Fine Tuned
