• Not worth the hassle of going big-bore yet.
    Pass your test first.

    Basic in's and out's of BB kit.
    More power, higher fuel useage, if anything is weak in your clutch/gearbox/drive system it will most likely fail. In general avoid anything for sale thats been BB'ed but is listed and sold as still a "125cc" with 180 kit. Voids any insurance if not declared and should be on V5. Loads do it to scooters.
    Better off trading the 125 for a 200/250/300+ for the extra power :)

  • You sound like every forum post out there (mostly of the guys who haven’t fitted them!)

    It’s more rabbit-hole for the sake of research. Plan to pass the test, but wondering longterm whether if I keep the 125 I can squeeze a little more out of it.

    Of course, if I had the space and money I’d buy a 600-750 touring machine and be done with it.

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