Hey, I took my Lopes 4x bike into my LBS today to get my new gears and what not set up. Now my problem is the chain line seems to be out and when running in the lower gears the chain jumps off the front chain ring and lands on the bb shell, its set up as 1x9. The guy in the shop is saying I need a chain guide for it but the cheapest one he has is £70 and I dont have that spare right now. Is there no other way of sorting it like putting a spacer or two in the bottom bracket axle (external bb) to kick the chainset out a bit? Any help would be great. cheers Rob