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Wet Noodle:
--- Quote from: ausmtb8989 on September 21, 2024, 05:08:36 AM ---Watts is watts, has nothing to do with cadence.
--- End quote ---
Except it has.
To tell anything about whether the cog made of a material with certain properties (one of which being its tensile strength that was thrown around earlier) would hold up to a certain load, you'd need to know that load. And that load is not power (the stuff given in watts), it's either the torque acting on the cog (or the resulting force at the teeth ... both being kinda equivalent for a given cog). Same power doesn't necessarily translate to the same torque at the cog.
And NOW would be a good moment to ask what this all has to do with cadence, at which point somebody should look up how power is calculated for any rotating gizmo ...
ausmtb8989:
--- Quote from: Wet Noodle on September 21, 2024, 08:02:41 AM ---Except it has.
To tell anything about whether the cog made of a material with certain properties (one of which being its tensile strength that was thrown around earlier) would hold up to a certain load, you'd need to know that load. And that load is not power (the stuff given in watts), it's either the torque acting on the cog (or the resulting force at the teeth ... both being kinda equivalent for a given cog). Same power doesn't necessarily translate to the same torque at the cog.
And NOW would be a good moment to ask what this all has to do with cadence, at which point somebody should look up how power is calculated for any rotating gizmo ...
--- End quote ---
but to say Watts doesn't tell you anything without cadence doesn't make sense. Watts tell you exactly the energy used/produced.
200watts is 200watts, regardless if its made at 50rpm or 100pm.
Wet Noodle:
--- Quote from: ausmtb8989 on September 21, 2024, 09:28:14 AM ---but to say Watts doesn't tell you anything without cadence doesn't make sense.
--- End quote ---
It does, in the given context. Yes, there was context. Sminchnz didn't just say that in a vacuum ...
Oh, come on, do I really have to explain the concept of a conversation now?!
Sminchnz:
1000 Watts at 10rpm is massive torque that'll shred a soft cassette, but the same 1000W at 120rpm is just spinning at low torque and the cassette will be fine.
jonathanf2:
I’ve been running the Garbaruk knockoff cage for the last couple weeks on my GRX 812 RD with a Ztto 9-46t 11 speed cassette. So far it’s been great and construction is solid. I liked it so much I bought another for my backup GRX RD. Shifting and overall handling is almost as good as stock with larger cassettes. Also I noticed back pedaling is smoother than the stock GRX cage. Installation was easy and I’m able to leave the clutch on full time. I opted for 12/14t jockey wheels with steel bearings. Overall weight was approximately 277g with new cage.
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