by MickYork » Sat Jul 26, 2014 9:11 pm
I used a one on a Rapido and an Avanti, both performed well, with a broader spread of power than some expansions. The main difference is the top end speed, My Rapido still pulled 70mph + (gps), took a while getting there though !!
The 48mm is meant to run cooler than the 42mm, with little difference in performance.