one piece crank
1pc Cranky
Happy to report that operation Silence of the Lambs is a complete success. As a summer wheelset, the past two morning upper-30's temps were enough to validate the now silent i9 XD Torch driver.
That's a bad way to design a stepped axle as there's a stress riser in the middle of the axle, both old and new design. New design may provide more support so it has less stress, but it's still bad. I'm going to assume that the step in the axle is right where there's some play from the freehub concentrating the highest load right on that point.
That setup may actually be stronger having a two piece design with it being a tube with the smaller OD all the way through with the bearing spacer being another tube that slides over it.
Carroll Smith is spinning in his grave.
I assumed there's no fillet as it probably mates right up to another bearing and it's a 90 degree cut in the axle.We figured this out with freewheels all the way back, and the design revision (freehubs) to stop it from happening.
Then apparently went right back to it when cartridge bearings became common.
Maybe there's a nice fillet under the spacer?
The sidewall thickness is too thin also.I assumed there's no fillet as it probably mates right up to another bearing and it's a 90 degree cut in the axle.
Should just have the axle made out of stainless with an aluminum spacer between the bearings... Probably less time on CNC machines, but not as pretty and another SKU.
I dunno, I'm not an engineer. 🙂
After a few hundred miles I noticed the buzz started to return. Only about 10-20% of full I9 volume, so still quiet. Then next ride it was back to near silent. I think the Tenacious Oil is doing its job!Happy to report that operation Silence of the Lambs is a complete success. As a summer wheelset, the past two morning upper-30's temps were enough to validate the now silent i9 XD Torch driver.
I like a quiet hub and find Phil's Tenacious Oil to work really well for that. Don't need much.After a few hundred miles I noticed the buzz started to return. Only about 10-20% of full I9 volume, so still quiet. Then next ride it was back to near silent. I think the Tenacious Oil is doing its job!
Welp, guess it isnt so much of a fluke
I applaud anyone who can be OK with 36T, I personally find it frustrating. But super high engagement I don't feel is necessary or worth adding all the complexity. It's not hard to do a reliable 6-pawl design with 72 points or so.I’ll just stick to the Toyota Camry of hubs: The DT350. I can’t take credit for that reference, but it’s accurate.
And I’ll also stick with 36t of engagement and never worry about the walk of shame due to a failed freehub.
I’ll just stick to the Toyota Camry of hubs: The DT350. I can’t take credit for that reference, but it’s accurate.
And I’ll also stick with 36t of engagement and never worry about the walk of shame due to a failed freehub.
56T ratchet is the $3 bills of DT Hubs, may explain why they keep failing...I run them on every bike I own except the Fat Bike. Absolutely the best hubs on the planet. And never, ever, ever put a 56t ratchet in unless you plan on walking out of the woods every other ride.
Given how DT SWISS engagement works, why does the increased engagement fail on their design?I run them on every bike I own except the Fat Bike. Absolutely the best hubs on the planet. And never, ever, ever put a 56t ratchet in unless you plan on walking out of the woods every other ride.
Given how DT SWISS engagement works, why does the increased engagement fail on their design?
Also, as soon as they’re available, and I can scrounge up the funds, going back to project 321, V2 hub is a smoothest hub I’ve ever had
From my Trials days I used to be hung up on POE. These days it's all about body control and the roll…I applaud anyone who can be OK with 36T, I personally