sprockets?

[Dirt Bikez & Pocket B]

ok i am looking for the best sprocket to make my bike go faster top end but not lose 2 much acceleration i was looking at a 37t one. my stock one is 48t or 47t. any reccomendations to what tooth i should get? and is the information on this ebay link true? ill go 130km/h http://cgi.ebay.com.au/race-sprocke...625315999QQcategoryZ32074QQrdZ1QQcmdZViewItem

 

[RD RACING]

i thought the 37 rear was a stock size, a friend has a 125cc and a 37 rear stock.

 

[Dirt Bikez & Pocket B]

nope mines 47 or 48 cant count lol so u reccomend 32?

 

[NIGHT RIDER]

yeah im pretty sure our bikes have a 47. umm... im quite interested in this sprocket actually i wouldnt mind some more power.