Yet Another Cycling Forum
General Category => Freewheeling => Topic started by: Cudzoziemiec on 25 February, 2019, 12:46:48 pm
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once i caught a fish alive (https://road.cc/content/tech-news/256750-rotors-13-speed-1x13-groupset-launches-prices-weights-availability-and)
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are they just jumping up in prime numbers now, will the next one be 17 ? ;D
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I's got a 7 on one bike and 10 on another, does that count?
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Well no, I'll have to confiscate the one with 10. :)
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Looks interesting. Seems the offerings are:
- 10-36
- 10-39
- 10-46
- 10-52
To get 50kph @ 90 rpm, requires a 44t front chain ring. That gives you a 60rpm low speed of: 9.3kph, 8.6kph, 7.3kph, 6.5kph. For comparison, a 34/34 @ 60rpm is 7.6kph, and a 30/34 @ 60rpm is 7.6kph. So the 10-46 and 10-52 cassettes, with the 44t chain ring, gives you about the same low end as a 34 or 30t double on an 11-34 respectively. At the fast end, 44t and 10t gives only 2kph slower than a 46 and 11. So 10-52 seems to have about the same range as a 46/30 double on an 11-34 cassette. But, at a cost of bigger jumps at the lower end.
I wonder what the chain life is like? Of course a product like this has the issue that spares are going to be rocking horse shit. You better hope it lasts your epic ride, cos you're unlikely to find someone able to fix it when on the road, let alone get the parts...
I wonder what the practical limit is on how many sprockets you can put in at the back. Esp as you're starting to need narrow hubs to take the extra cogs.
1x also always makes me wonder about the arguments regarding cross chaining...
I wonder how the big players will react.
J
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Cost £3000-4000. Ha ha ha ha ha
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Cost £3000-4000. Ha ha ha ha ha
That's on a par with the high end group sets from some of the other players. Shimano's dura ace is still best part of 2k if you're buying retail, but SRAM Red eTap AXS is just under 4k.
J
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If they keep adding sprockets, at some point they're going accidentally invent a CVT.
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If they keep adding sprockets, at some point they're going accidentally invent a CVT.
Well, if someone can come up with a CVT solution that's lighter than the NuVinci, they'll be on to a winner.
https://en.wikipedia.org/wiki/NuVinci_Continuously_Variable_Transmission
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300+ quid on a consumable (cassette) + whatever for a chain is just silly for a bike if the rider has to pay retail price. I'm sure it is a good system, if I get the bits for free and it is even better if they pay me to use it.
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I look forward to seeing a racer with their "unlucky" 13 number attached upside-down, pedalling a 13sp transmission.
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They'll be OK if they pedal it backwards
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It's enough to make me go fixed permanently.