Derbi Senda Xtreme 50cc SM Speed Help

[perri1996]

I have recently bought a Derbi Senda Xtreme 50 and I had the X-race senda before this my old bike had the same engine and hit around 65-70 as the top speed. The xtreme I own now isn't as fast and only does around 50-55 any suggestions on how I can improve this speed? thanks

[monkeyman]

is this new one restricted?

maybe you have a differernt sprocket combination on bike?
____________________
Im not the best, but im in the top one
RM 250, Husky TE610, K1 GSXR 750

[monkeyman]

https://www.bikechatforums.com/viewtopic.php?t=199260

look for the post by dobby, covers derestriction.
____________________
Im not the best, but im in the top one
RM 250, Husky TE610, K1 GSXR 750

[perri1996]

Thanks for your help the original owner gave me 3 spare sprockets so should i just play around with them to sort the gearing out?
____________________
Current Bike : Honda CBF 125 Old bikes: Derbi Senda Xrace/ Derbi Senda Xtreme.

[monkeyman]

Well I would check that your bike has all of the modifications listed in that thread. If you want to de restrict it that is.

I doubt you would be able to get 70 out of a 50 of it wasn't derestricted

My old nsr125 would only just get 70 when it was restricted
____________________
Im not the best, but im in the top one
RM 250, Husky TE610, K1 GSXR 750