smutchin
Cat 6 Racer
- Location
- The Red Enclave
I'm glad you said that. Let's say I cycled miles on roads on a Giant Defy 5 and it took, say, 25 minutes. On the same roads, with the effort the a mtb took 40 mins. How long would you say a Claud Butler CX11 would take (same mileage, roads, and effort)? Just trying to gauge how much slower a CX would be?
Three things to bear in mind...
1. Tyres - slick tyres are faster. To echo @mjray, put slick tyres on the CX bike and it will probably be as quick as the Defy.
2. Aerodynamics - overcoming wind resistance accounts for about 80% of your effort. The upright riding position of an MTB means more wind resistance. The riding position on the CX bike will be much closer to the Defy, hence a lot more aerodynamic than an MTB.
3. Suspension - if your MTB has suspension, that will also slow you down because it absorbs a lot of the power you put in. The CX bike doesn't have suspension.