Ivanb Posted August 6, 2007 Posted August 6, 2007 ok so is it R1500 for both blades or full crank? after reading the reviews it sounds like they work' date=' only thing left is to actually try them[/quote'] R1500for both q rings road set. This is the best comment ever made, unbaised, uncalculating Well Done!! Go for it
1hill@aTime Posted August 6, 2007 Posted August 6, 2007 ok so is it R1500 for both blades or full crank? after reading the reviews it sounds like they work' date=' only thing left is to actually try them[/quote'] R1500for both q rings road set. This is the best comment ever made, unbaised, uncalculating Well Done!! Go for it just to be 100% sure ill be using my cranks with the Q rings?
Ivanb Posted August 6, 2007 Posted August 6, 2007 [weekend?The concept is not far off but there are a couple of considerationsa) The Shimano version does exactly that too. The Q-Ring just moves the ring about 15 degrees further round. Is that going to make such a difference to a concept that Shimano dropped because it had no noticeable effect.b) W.r.t. the 1 speed vs 10 speed argument. This is more like 9.999 vs 10 spd and that is the whole question - does it make enough difference that it is even noticeable?? As far as I know and stand to be corrected. It was dropped because it hurt the knees and the feeling was very bouncy. They had the big portion of the blade in the dead spot unlike the Rotor System. Rotor also has the OCP which allows you to position the blade to suite your riding. see http://www.rotorbike.com/2006/q_previous.htm http://www.rotorbike.com/2006/qringgen.htm
Ivanb Posted August 6, 2007 Posted August 6, 2007 just to be 100% sure ill be using my cranks with the Q rings? Yes you can use your own cranks the store will need to know which shimano, fsa compact or campag. We also have our own cranks. Agilis http://www.rotorbike.com/2006/agilis.htm
pcarrasco Posted August 6, 2007 Posted August 6, 2007 The concept is not far off but there are a couple of considerationsa) The Shimano version does exactly that too. The Q-Ring just moves the ring about 15 degrees further round. Is that going to make such a difference to a concept that Shimano dropped because it had no noticeable effect.b) W.r.t. the 1 speed vs 10 speed argument. This is more like 9.999 vs 10 spd and that is the whole question - does it make enough difference that it is even noticeable?? a) 55? approx, compared to Biopace (15? compared with Osymetrics and XIX century oval chainrings) b) What means 9.999?... If we were talking about simply 9.9 vs 10, the oval would be so reduced that in fact the chainring is round. What Faniefiets says is correct, but depends so much on the timing for "switching gears". With the Q-Rings we are varying gear twice every cycle, but only choosing the best timing for "switching gears" (using the OCP - regulation ) we can improve performance. In fact a non-proper OCP makes you to go not so good, and an intended wrong regulation makes you to pedal horrible. Then I suppose the conclusion for those of you scientists, is that you pedal horrible (with the oval improperly oriented) only due to the negative placebo effect.
Johan Bornman Posted August 6, 2007 Posted August 6, 2007 The concept is not far off but there are a couple of considerationsa) The Shimano version does exactly that too. The Q-Ring just moves the ring about 15 degrees further round. Is that going to make such a difference to a concept that Shimano dropped because it had no noticeable effect.ba) 55? approx' date=' compared to Biopace (15? compared with Osymetrics and XIX century oval chainrings)[/quote'] This reminds me of bicycle frame marketing in the 1990s. Then it was all about angles, or to be fancy "geometry". Each frame manufacturer then claimed to have found some magic and secret combinations of frame geometry that improved cycling incredibly. What I really enjoyed were the paradoxes - "quick steering but more stable" and "stiff but compliant". If anyone took them to task as I did in the Ride magazine of those days and actually measured the frame angles, you'd discovered they were all very similar, with a 1 degree variance. When I challenged the editor at the time to tell us where he could feel the difference between frame A and frame B, he decided to wage an ink war and slag me off, with a right to reply three months later. He claimed that the one could climb faster than the other because of better geometry. Now we're playing games with angles in chainring ovals. Biopace disappeared because the market decided it was hoohey. Nobody's knees got hurt and nobody was dropped off the back of the peloton because of them. It was a stupid idea then and is a nonsensical idea now. Claiming that you've discovered a new angle to the old story is misleading. I doubt that Shimano in those days got the sweet spot, which is claimed here to have been 15 degrees so wrong, that another inventor stumbled on 55degrees and voila! it works. Lets see the patent office register that invention. Methinks the one company is measuring 55 degrees from the horizontal and the other from the vertical, giving us a 20 degree difference. I remember at the end of the Biopace days some people discovered that if they rotate their Biopace rings to one hole further, they get better power and less knee injuries and it was also kinder on the rand dollar exchange rate and better for you than Vitamin C. Rotating the ring on the spider is nothing new. Anyway, like all good marketing hype, oval rings it will rage on for a while and eventually disappear. It will make a comeback under another name in 2017. Of course the geometry would have been perfected by then.
Wannabe Posted August 7, 2007 Posted August 7, 2007 Wel, all said and done, I finaly managed to procure a set of Q rings, and fitted them to my bike last night. Set it at recommended #3 setting for both chainrings. Was a bitch to get my deraileur set up correctly. Still have a bit off chainrub in the big ring. Will finetune it as I go along.Will go out tonite to test it, will report back tomorrow.
FanieFiets Posted August 7, 2007 Posted August 7, 2007 Went spinning this morning. My pedal stroke did feel more unregular than usual. So I have a question: Will your pedal stroke get worse and worse the more you use q-rings because it is easier in the dead spot?
Wannabe Posted August 8, 2007 Posted August 8, 2007 Okay, herewith my very un- scientific report on Q rings, after one 35km run on my regular training route.Pedal stroke definately feels smoother. Going up one of the long drags on my route, my "perceived level of exertion" (did not use my HRM yesterday, was a recovery ride) was definately less than normal. Also did not get the "burn" in my legs at the normal spot. Could push it harder, for further. Got up to a max rpm of 170 going flatout on a level piece of road. I know this is only after one ride, and only my impression, but I would give the Q rings a thumbs up.
Ivanb Posted August 8, 2007 Posted August 8, 2007 I only wish those who ride them and voted either good or bad would comment and say why they are good or bad.
Windbreaker Posted August 8, 2007 Posted August 8, 2007 I'll summarise it all for you. Good - "cause they make me go faster for less effort ... I can tell cause it just feels faster although no one can prove it" Good - "cause they look cool and besides I spent a lot of money so they must work" Bad - "cause they don't make a slight bit of difference to my performance" Bad - " ... and now my pedal technique is all f**ked up" Bad - "cause they look funny, and the serious cyclists mock me"
CaptainDura Posted August 8, 2007 Posted August 8, 2007 Went spinning this morning. My pedal stroke did feel more unregular than usual. So I have a question: Will your pedal stroke get worse and worse the more you use q-rings because it is easier in the dead spot? Kom nou Fanie. Jy ry die goed al lank genoeg. Gee ons jou opinie oor 'n 10 km timetrial. Vinniger/stadiger tyd?Hoer/Laer hartklop?Meer/minder brand in bene?Meer/Minder watts in totaal? Of het jy nog nie sulke detail beskikbaar vir ons nie?
Ivanb Posted August 8, 2007 Posted August 8, 2007 I'll summarise it all for you. Good - "cause they make me go faster for less effort ... I can tell cause it just feels faster although no one can prove it" Yes they can see the comments Good - "cause they look cool and besides I spent a lot of money so they must work" did not spend a lot of money they are priced well within the price of chainrings Bad - "cause they don't make a slight bit of difference to my performance" beg to differ as per riders using them lower heart rate higher power and better times Bad - " ... and now my pedal technique is all f**ked up" mmm thats an extreme comment maybe its now cotrect? Bad - "cause they look funny, and the serious cyclists mock me" mmm doubt it as they are wannabees wanna be riding them
Ivanb Posted August 8, 2007 Posted August 8, 2007 Went spinning this morning. My pedal stroke did feel more unregular than usual. So I have a question: Will your pedal stroke get worse and worse the more you use q-rings because it is easier in the dead spot? You will feel it different when you go back to regular round rings. The round rings feel harder to ride specially on the hills. Remember on spin bike the front wheel is weighted so it hard to get a good assumption of comparison as that has big influence in spinnig very different from riding a bike. No way will your pedal stroke get worse. It is only harder to ride round rings and you need to work harder to get through the dead spot. that is one aspect that immedialtey proves the benefits of Q Rings against round rings. It is always noticed when going back to the round rings.
Ivanb Posted August 8, 2007 Posted August 8, 2007 Okay' date=' herewith my very un- scientific report on Q rings, after one 35km run on my regular training route.Pedal stroke definately feels smoother. Going up one of the long drags on my route, my "perceived level of exertion" (did not use my HRM yesterday, was a recovery ride) was definately less than normal. Also did not get the "burn" in my legs at the normal spot. Could push it harder, for further. Got up to a max rpm of 170 going flatout on a level piece of road. I know this is only after one ride, and only my impression, but I would give the Q rings a thumbs up.[/quote'] thanks Wannabe I am sure when you start looking at your heart rate , power speed etc you will see differences. I am glad you are happy. Our stock is in for all blades MTB rd, TT and tandem as well as our agilis and sabb. Thanks stay Rotorized
Windbreaker Posted August 8, 2007 Posted August 8, 2007 So IvanB what is it you really want from this thread? Those are the typical comments that you will read on any forum dealing with Q-rings, Biopace, Osymetric or any other variation of them. At the end of the day it's all just personal opinion as there is no proof either way. If this is just 23 pages of punting and marketing then rather than re-ignite issues that have been discussed to death just come out and say it... "This is an endless punt for Q-rings"
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