rotor q-rings on 29er opinions?

I have been using rotor rings on my XTR970 crank for a few years now, love them. I had the 23/33 on there, but left the big ring standard as I seldom use it around here.

A week or two ago a went 1X9 and am using only the 33. It has been snowey and otherwise crappy around here, so kinda slow going and not good riding conditions, but I think it will be great for what that bike is supposed to be - XC.

I highly recommend the rings, if the gearing works for you, you are somewhat limited in ring sizes that will work with 64/104. I would really have prefferred a 30 ring, but think the 33 is goon be fine. Make me stronger, right? or something like that

i need some high bucks to adquire this.... is it true its gave more 13% power in pedaling?

ftajiri said:

i need some high bucks to adquire this.... is it true its gave more 13% power in pedaling?

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I've been using a 36 tooth Q-ring for a long time. I can't say if it gives me more power, or if it smooths out my stroke. Mostly because I haven't ridden round rings in so long.

However, I bought some Middleburn cranks with a 34 tooth ring to try out. I'm hoping (now that I'm switching back) that I won't notice any difference...

I've been running a 33t qring on my SIR9 for a little over a year; mostly in a SS configuration and sometimes as a 1x9.

About the only thing I can say is that it smooths out the power delivery while in a SS configuration, making it easier to stay hooked up on some of the more difficult climbs. That is about the only thing I really have noticed.

I have tried the qrotors in each of the three positions and indeed the difference is significant....one way it feels much better standing, the other way it feels much better sitting. I ended up plunking it back in the middle as that seems to feel the best overall for me.

How's this different from Biopace?

Vermont29er said:

How's this different from Biopace?

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First thing in their FAQ...

http://rotorbikeusa.com/support.html

I have these on my SS and they sure make the dead zone easier to manage compared to my standard ring.

Quick clip:

Spinning the Q-Rings

I dread the time when I have to replace them however...

I've got them on 3 bikes, my mamasita, my road bike and a single on the CX bike. The scientific argument seems solid to me, but I'm no engineer. I do know that many pro road and mtb riders use them without a sponsorship. What I notice is smoother spinning and less hip flexor issues. YMMV.

i have used a 34t for quite a long time now on my karate monkey.
First in SS configuration, wich is really good for smoothing out the dead spot.
Now i use it on an alfine, the difference is less important.

I have emailed Rotor a few times, about ring sizes, but they never reply, the company obviously know NOTHING about customer service......

The only current sizes i can see are 23/33/43 for a standard 4 bolt c/set, but ive heard of 24/34/44 and 38 and 36 teeth rings from other people on forums? I asked them if this was the case and if these sizes were still available, but no reply........ideally id like a 24 and a 34 or a 36 for a 2 ring set up.

I have had luck with this email address in the past

[email protected]

RockStarRacing said:

I have emailed Rotor a few times, about ring sizes, but they never reply, the company obviously know NOTHING about customer service......

The only current sizes i can see are 23/33/43 for a standard 4 bolt c/set, but ive heard of 24/34/44 and 38 and 36 teeth rings from other people on forums? I asked them if this was the case and if these sizes were still available, but no reply........ideally id like a 24 and a 34 or a 36 for a 2 ring set up.

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I have the "33t" on my SS and its behavior is interesting in that it does feel harder when I am laying the power down, but easier to pedal in general due to the reduced radius at the dead spot (my original chain-ring was a 33T ). Keep in mind the 33T is more like a 35T when in the "power-zone" of the stroke.

One more thing to add, is that my back pain went away from long climbs after getting the chainring.

Bryan d

Is it Toll free from the UK though.........

will check to see what email address i have been using. Can anyone confirm that other sizes other than than the current 22/33/43 are available or have ever been available?

RockStarRacing said:

Is it Toll free from the UK though.........

will check to see what email address i have been using. Can anyone confirm that other sizes other than than the current 22/33/43 are available or have ever been available?

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No, that's the USA Rotor website and a USA toll free number. You could call it from the UK, but will have to pay the charge. Or if you speak Spanish, you could track down the number in Madrid.

Or just contact the UK Distributor (Velotech). Phone numbers, FAX and email are listed on the main Rotor website. By the way, that's where I bought my Q-Rings a year ago as the US Dollar was doing very well against the Pound at the time and it saved me about $100 US.

http://www.rotorbike.com/nueva/ingles/distribuidores.htm

I linked the older MTB 24/34/44 rings that are still available from various online stores.

BB

i will hunt around for 24,34 and 36 online. Velotech only have the newer sets in 23/33/43.

RockStarRacing said:

i will hunt around for 24,34 and 36 online. Velotech only have the newer sets in 23/33/43.

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They make the black colored 34, 36 and 38 in 110 BCD inner rings (Road compacts).

BB

was hoping they did a 24 and a 34 or a 36t in 104bcd.....

I have emailed Rotor again, see what they say, thanks for you help BB.