View Full Version : Rs 50 '10 high end!

09-23-2012, 08:23 AM
hello this is my first post on this forum.
I save money to make my rs50 with D50B0 engine with these mods
jolly moto high end 80cc http://www.fiftyrider.de/exhaustjollymotoevolution80apriliars50derbigpr50-p-290.html
polini aluminium 80cc http://www.adrenalin-pedstop.co.uk/p/Polini_80cc_cylinder_kit_for_Derbi_Senda_2006_-1772.aspx
doppler endurace crackshaft http://www.adrenalin-pedstop.co.uk/p/Derbi_D50B0_Endurance_crankshaft_from_Doppler_%E2% 80%93_Senda_RSRX_etc-2980.aspx
polini race clutch kit http://www.adrenalin-pedstop.co.uk/p/Polini_race_clutch_for_Derbi_engines_%E2%80%93_200 0__2009-2684.aspx
polini PWK 30mm (isnt that a keihin?) http://www.adrenalin-pedstop.co.uk/p-Polini_PWK_30mm_flat_slide_race_carburettor_-5129.aspx
i need advice for reeds~!~ and what about the power i would have!

09-23-2012, 12:54 PM
0.40mm reed petals

09-23-2012, 01:07 PM
on the stock reed cage?

09-23-2012, 01:42 PM
up to you, its the stiffness of the petals which matters as they need to open to let air + fuel mixture through and close in time to keep the compression in like a one way valve

if the reed petals are too thin you will experience fluttering at higher rpm as they arnt stiff enough to close in time

10-13-2012, 11:56 PM
nice job

10-14-2012, 12:03 AM
nice i love it