https://www.bikeradar.com/road/news/article/3t-torno-crank-52044/
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oooooooooooooooooo that’s cool
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It’s been vaporware for so long I’d forgotten about it…
Interesting . . . but the biggest ring offered is 44T? Is that correct? If it is, I would think Tri/TT bikes are going to need a lot more teeth.
Interesting . . . but the biggest ring offered is 44T? Is that correct? If it is, I would think Tri/TT bikes are going to need a lot more teeth.
Nah, it’s meant to be combined with their 9/32 cassette. 44-9 is a pretty solid gear.
…now they just need a TT bike to throw it on…:
Interesting . . . but the biggest ring offered is 44T? Is that correct? If it is, I would think Tri/TT bikes are going to need a lot more teeth.
Nah, it’s meant to be combined with their 9/32 cassette. 44-9 is a pretty solid gear.
…now they just need a TT bike to throw it on…:
That makes sense. I didn’t know they made a 9T cog. Still, the narrow Q-factor would keep it off my bike. My frame barely clears a Shimano crank!
The Vision Looks Familiar… It was on Starky’s bike last season
The lost efficiency on a 44-9 gear would be pretty huge.
The lost efficiency on a 44-9 gear would be pretty huge.
+1. Not practical for going fast.
The lost efficiency on a 44-9 gear would be pretty huge.
How much do you think? I assume we’re mostly talking about the cog, as I’d think one you get to 44 teeth the efficiency differences are beyond marginal for each additional tooth.
From the Friction Facts report (with 53t ring), there are no losses until 13. There’s about 0.5W loss for 13, another 0.5W for 12, and 0.75 for 11. It’s tough to extrapolate from so few points, but it looks like there might be a deflection point around 11t. So possibly 5-8W loss from 14 to 9?
In any case for a TT, it does seem that the you’d want to gear so you’re in at least a 14 most of the time. Which would take >> 44t ring for most people.
This,
But I would guess I haven’t looked at it as closely as you or others.
IE % time in the 9 or10…say in an IM.
Maurice
A 44 when Aerocoach is pushing a 60 for a fast front chain ring. Someone has the right idea for all out fast TTs and I am going to guess it isn’t 3T.
On a related note, I have wondered what Aqua Blue would ride for a TT bike this year. Anybody seen what bike they are using? P5 would be my guess, but I haven’t seen anything yet.
The lost efficiency on a 44-9 gear would be pretty huge.
Best get some big jockey wheels to go with that.
At least an 11% gap to the next sprocket, nice.
On a related note, I have wondered what Aqua Blue would ride for a TT bike this year. Anybody seen what bike they are using? P5 would be my guess, but I haven’t seen anything yet.
Unmarmarked Ridley TT bikes with 2 rings.
This might be the most Slowtwitch-perfect subject line ever.
But yeah, it is pretty sexy. Sign me up…
So this is what I want to know: what will 3T do for their inevitable TT frame?
guesses? P4 with disc brakes with deeper section tubes? P5x/Tririg Alpha One type aerobar system?
I love that crank, and I just want a 42t ring and pair that with their cassette(s) and can do about anything.
But, of course, I think they should abandon their rear cassette and create a single cog cassette that expands from 10t to 40t, continually variable. electric, fit on any freehub body with ability to center for optimal chain line, single front chainring. #justdoit
Yessssss
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The lost efficiency on a 44-9 gear would be pretty huge.
Best get some big jockey wheels to go with that.
At least an 11% gap to the next sprocket, nice.
…in pink??
Still not getting what you guys might be getting at.
Maurice
Small gears are less efficient. A 9 tooth cog is super tiny. Can’t see why I’d ever spend $1200 for this crankset that limits you so much and makes you slower.