If its a nice Carlton geared road bike leave it as it is, they can be very nice! :D
If you just want to go SS on that then you can get a screw on adapter that allows you to put a SS freewheel on without having to re-dish the rear wheel. Saw it on ebay was about £12 maybe? Obviously not suitable for fixed cog, but fine for SS and will sort your chainline issue.
Or use a set of cranks where you can use a 40-50t chainring on the inside of the crank arms, its fine to put a series of washers under the chainring/crank spider as long as the bolts are long enough (you can maybe add 2 or 2.5mm of washers max). Having chainring on inside will make a good 10mm of difference in the first place.
If its a nice Carlton geared road bike leave it as it is, they can be very nice! :D
If you just want to go SS on that then you can get a screw on adapter that allows you to put a SS freewheel on without having to re-dish the rear wheel. Saw it on ebay was about £12 maybe? Obviously not suitable for fixed cog, but fine for SS and will sort your chainline issue.
Or use a set of cranks where you can use a 40-50t chainring on the inside of the crank arms, its fine to put a series of washers under the chainring/crank spider as long as the bolts are long enough (you can maybe add 2 or 2.5mm of washers max). Having chainring on inside will make a good 10mm of difference in the first place.