We got NSR125F's and NSR125R's in the UK.
As far as I'm aware the R model is fully faired, the F model isn't and that's the difference.
Intended mainly I think for the European market where 12bhp 125's are a learner sized bike you can ride without a full licence. Hence they're quite big and not very sporty.
The go forever, never break and aren't very fast.
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