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Post by RobP on Nov 19, 2016 19:52:13 GMT
Found the difference between the Rampa and Qubo blah de blah B+: Rampa simulates 10% incline and Qubo 6% So, is that worth the Β£100+ difference? Personally I would go Rampa. My Tacx Genius is good up to 15% and feels a lot better than my previous Bushido on the hills but ultimately only you can make the decision
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Post by Rocket on Nov 19, 2016 20:22:01 GMT
Surely a trainer just alters its resistance? It's the perception of needing a lower gear or having to stand up to maintain the same speed that gives the impression of a hill coupled with an on-screen scene? This would mean the maximum hill a trainer can simulate is down to the software controlling it assuming the resistance is not already maxed out?
I have a manually controlled trainer. I just crank up the resistance or change to a higher gear to simulate a hill. It's capable of continuously absorbing 670W so that's a bigger hill than I've rode so far.
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Post by RobP on Nov 19, 2016 21:42:26 GMT
Surely a trainer just alters its resistance? It's the perception of needing a lower gear or having to stand up to maintain the same speed that gives the impression of a hill coupled with an on-screen scene? This would mean the maximum hill a trainer can simulate is down to the software controlling it assuming the resistance is not already maxed out?Smart trainers are electronic resistance so yes the resistance effectively maxes out
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Post by Rocket on Nov 19, 2016 22:15:41 GMT
Must be trainers for girls then? Rampa seems capable of absorbing 800w with the Qubo absorbing 600w. These will be at high flywheel speeds though so at lower speeds to simulate say 10mph up a 10% hill they can only absorb a fraction of this hence the limits?
Does your Zwift thing get speed as reported by a trainer/wheel sensor or does it calculate it from power and the current rider stats and terrain?
For my setup any speed numbers are irrelevant. I'm simply training to power numbers so if I want to apply more I use a bigger gear and/or higher resistance.
Interested to learn how this Zwift actually works.
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Post by RobP on Nov 19, 2016 22:44:08 GMT
No nothing to do with wheel speed at all as not even a speed sensor for smart trainer. It a calculation based on rider declared weight and power in watts as transmitted by trainer or power meter and the elevation on course. zwiftblog.com/how-does-zwift-calculate-my-speed/In Zwift you don't see other riders speed on the dashboard instead it shows as watts/kg In races you can also get small advantages from the draft effective of being in peloton If using a non smart trainer without a power meter then you can use speed sensor to get involved and if Zwift has your trainer listed then it uses a power curve that they have mapped based on a specific setting on trainer. e.g. you must set trainer to level 3 or something. If none of these then it will be a very basic power curve map with limits set on max watts/kg it will allow and results wont count in some race series. A lot more stuff to read here zwiftblog.com/category/getting-started/Give it a go in one of the races Rocket knowing how competitive you are you might enjoy it fella
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Post by r0b1et on Nov 19, 2016 23:03:58 GMT
look up the max powers @paulinblack. I'd imagine you can churn some reasonable power, and especially in a sprint... so if you don't want to simply spin out the trainer in a sprint, then 6% gradient might not be enough.
I wnt for the Qubo fluid because it went above my sprint max (which was ~1200W then, I've gone to 1350W since - for a few seconds).
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Post by Rocket on Nov 19, 2016 23:14:10 GMT
Even more confused now. If wheel speed is not part of the equation then how can a trainer capable of soaking up 800w only simulate a 10% incline? This may be true for a 20 stone rider but not for a 10 stone mountain goat. Off to have a read....
14 year old PC on Windows XP = never going to happen
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Post by RobP on Nov 19, 2016 23:23:57 GMT
Even more confused now. If wheel speed is not part of the equation then how can a trainer capable of soaking up 800w only simulate a 10% incline? This may be true for a 20 stone rider but not for a 10 stone mountain goat. Off to have a read.... 14 year old PC on Windows XP = never going to happen Sorry mate 64bit windows or mac only The max incline quoted by manufacturers is often shown with rider weight e.g Realistic Slope: 15% (With a total weight of 75 kg)
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Post by Rocket on Nov 22, 2016 22:58:29 GMT
How much electricity do these trainers you plug into the mains use? It seems wrong to me that something which should be capable of generating electricity actually uses it instead.
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Post by chas on Nov 23, 2016 7:10:26 GMT
It will depend how lumpy the course is,AFAIK the power is used by a servo changing the resistance connectivity is negligible.
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Post by Rocket on Nov 23, 2016 10:21:34 GMT
Not any more chas . The latest versions are now using electro-magnets to give variable resistance.
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Post by chas on Nov 23, 2016 12:18:55 GMT
The ones I've seen the electromagnetic resistance is varied by altering the distance between the magnets and coils mechanically, I could hear it moving. Probably cheaper to use electronic controls.
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Post by Rocket on Nov 23, 2016 17:45:21 GMT
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Post by Paulinblack on Nov 23, 2016 17:48:39 GMT
I can't afford one of those.
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Post by chas on Nov 23, 2016 19:12:56 GMT
Not sure he knows what he's talking about. In 'magnetic' trainers the resistance is electromagnetic and can be varied either in steps or smoothly depending on the control system.
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