Originally Posted by mogsie
Hey qcanoe! It was not a say but a question...And I think you're right! I just came from a ride on my tricross and really felt like it was really demanding... I then took my new Superfly 9.7 and did again the last part of the ride and it was so much easier that I don't understand anymore! How come my mountain bike can be easier and as efficient as my cyclocross on the road???I think you may have just given me part of the answer but there is definitly something wrong here...
Could it be that the geometry of the tricross is really not for me? I have quite a large frame so maybe a larger handlebar is better for me? I'm in the dark...
Originally Posted by mogsie
It feels like I can get more power and efficiency from myself on the Superfly thant the Tricross...
I first tought that maybe I could just get a second set of wheels for the Superfly but I would also need new crankset and cassette... Also, I felt that even closed, the rear suspension made me loose a little power... So maybe I should look at bike like a crosstrail or a hardtail?
BTW, great stuff from your 1st link! It is a concentrate of infos...The kind of text that you have to read a couple of times...
Comparing apples & oranges is always a exercise in frustration. Your position on each bike is likely quite different. Different enough to make riding the bike you do the miles on, seeming much more 'efficient'. Same can be said for me, I go faster on my roadie than I do on my TT bike - BECAUSE I rarely ride the TT and the position is SOOO different than the roadie.
Position on an MTB is going to be quite different from a road or cross bike. Then there's the question of riding style (cadences used, gearing, technique for the up & down terrain you speak of).
Position will also have a major impact on posture; and position and posture dictate power (and efficiency, and the balance of both).
The wheel thing makes a difference - if you're always at or near your limits, if you're riding in groups which don't allow you to dictate your pace & style, if you have to keep up, if you're racing.
Wheel weight is VERY second to rider weight and fitness. Most factory machine built wheels can be improved greatly by first having a good wheel builder properly tune and tension the wheelset. This is usually the most economical way to go before dropping bucks on a wheelset which might be a real improvement. And based on your weight, a 25mm will certainly be more comfortable and more efficient than a 23. Even going to a 28 on the rear might be worth a try. Good tires make a difference - about the same as good wheels - and definitely easier on the wallet as a start.
IN the end, 'feeling' faster may or may not be accurate. Time yourself, on the same route, under same conditions, when you're feeling about the same. Make it at least a 45 min course. A short course will favor which ever you can 'power' thru. A longer course will always favor the most efficient ride.
Spend some time with experienced roadies who might be open to giving pointers on improving on road performance is always a good thing.
tuning the motor pays the biggest dividends.