Gearing advice

jono83 · #1 21-09-2009

hi can some one give me a starting point for a sintered 7.5 wth a 83 spur gear around oswestry its a tight astro/grass track. thanks in advance

stegger · #2 21-09-2009

I'd go with a 21,22 pinion fella

but somebody from there may have better knowledge

bigred5765 · #3 21-09-2009

21-22

jono83 · #4 21-09-2009

cheers guys

jono83 · #5 29-09-2009

Also how about a 6.5 around the same
track. With an 83 spur.

mikeyscott · #6 29-09-2009

What was the FDR of the 7.5?

20 for a 6.5? Not sure as I'm about to do the same 7.5 >> 6.5