Trevor Morley's Tache
Well-Known Member
With a 'crap bike' you will be working harder than someone on a high end bike to achieve the same speed. Their average power output will be significantly lower than yours.I’ll do the occasional session on my bike when my Achilles stops me running and I just use my bog standard Halfords mountain bike that I bought to potter round with the kids on when they were little. Dead heavy, gears don’t seem great etc. Often toyed with the idea of forking out for something more sophisticated but wouldn’t use it enough to justify the cost. Also am I daft to think that the worse the bike is the harder you have to work and so counter intuitively fitness wise it’s beneficial to have a crap bike ?
If you get your bike set up optimally, then it should be more than adequate. Get your gears shifting properly, and you should be okay. More expensive groupsets are generally lighter and stiffer, and shift gear more quickly and smoother than low end components. In reality most bikes are fairly even on the flat given similar gearing and rolling resistance. Even aero-bikes don't really give you that much saving in terms of cost per watt saved. You might gain a small advantage with more efficient bearings, and better power transfer through the gears/chain, but it's fairly marginal for your average cyclist.
The biggest issue you have with cheaper bikes in general is the weight. The heavier the bike, the harder it is to peddle up hill. Even an shallow incline can feel difficult on a heavy bike. Depend where you intend to ride, but if it's on the road probably the best bang for buck on your old mountain bike would be to stick some lower rolling resistance tyres on. Knobbly tyres are crap on a smoother surface.