This is becoming quite frustrating as I can't fix it. The down shift lever on my 2010 X7 9 speed shifters is sticking. It doesn't return as it did when you shift down. This is the silver thumb lever.
Got new cables today in a hope that that was it. I've had the whole thing apart, cleaned it, oiled etc. and thought I'd fixed it several times. But as soon as it's back on the bike and tensioned up it sticks again. Shifts fine, just doesn't return.
Anyone any ideas?