Is this I9 hub failing?
- Thread starter TommyF
- Start date
Steve Vai
Endurance Guy: Tolerates most of us.
That's what the ring drive looks like brand new.
I have not been super impressed with my i9, had to do a full bearing replacement after a year on the rear hub.
White industries is good, but nothing was better than the project 321, it is on my sons bike atm and it rolls much much smooth than the i9 and has the “spin for ever” effect. The reason I tried i9 was because of the preload nut issues with the 321, something that sounds like it is resolved with their next gen hub which should be out soon
White industries is good, but nothing was better than the project 321, it is on my sons bike atm and it rolls much much smooth than the i9 and has the “spin for ever” effect. The reason I tried i9 was because of the preload nut issues with the 321, something that sounds like it is resolved with their next gen hub which should be out soon
TommyF
Well-Known Member
I had two mechanics at my LBS look at it closely. Lights, camera, zoom and we all determined those are not cracks but rather machining marks. We saw no signs of any cracks when looking closely at the teeth. Weird, I've serviced this hub many times and never really noticed those marks. It's back together, loaded up with grease so it's nice and quiet. I'll pull it apart in another month for a check up, unless it starts to self destruct sooner, I'm still a little concerned. Also waiting to see what I9 has to say when they see the pictures I sent.
if you really want to be certain, somebody has to have dynaflux
this version is inexpensive -
regismanufacturing.com
this version is inexpensive -
Kwik-Chek Crack Detection Aerosol Penetrant, 8.5 oz. - KCK-1
Kwik-Chek Crack Detection Aerosol Penetrant, 8.5 oz. - KCK-1
regismanufacturing.com
johnbryanpeters
Well-Known Member
There's probably a limit to loaded up with grease if one wants pawls to fully engage.
one piece crank
Well-Known Member
Could be, if you pack it full. On my Summer Wheels I like a little Phil grease + Tenacious oil to quiet things down.
JDurk
Well-Known Member
I'm going to agree with your mechanics and referencing @JonFern 's picture. The marks are from the machining operations. Too uniform in depth, width, and equal spacing radially between each set around the circumference.
Too much grease will make it quiet, but may hinder engagement. I9s are supposed to be loud. Probably not as loud as the Hope SS specific hub on my SS. What does I9 recommend for lubing the freehub?
Signed,
Mechanical Engineer
Mr.Moto
Well-Known Member
I believe they recommend the Dumonde Tech Freehub oil. There is also a very light grease that is recommended if you want quieter pawls. Forget what it is. I'll have to find it on my bench.
Steve Vai
Endurance Guy: Tolerates most of us.
I use Ceramic Speed Pulley Grease in mine. It's really close to a wet lube but lasts a lot longer.
Dave Taylor
Rex kwan Do
LBssssssss
Dave Taylor
Rex kwan Do
My first I9 torch had some grooving on the free hub body but other than that I have owned 4 pairs (2 torch/2 hydras) and zero issues. Never even needed bearings. I think single speed is what damaged the original one but it still never failed.
qclabrat
Well-Known Member
Seconds on Whites and also Hadleys. No longer an I9 fanboy either.
Dave Taylor
Rex kwan Do
one piece crank
Well-Known Member
onetracker
Well-Known Member
If you look in the svc manual, those machined relief sections allow the pawls to slide back into place upon reassembly. I had my i9 rear hub apart 1 week ago for normal service and it looked exactly the same. Ride on. BTW-My fav hubs are King!
Dave Taylor
Rex kwan Do
So basically this thread falsely made I9 hubs look bad?
Mahnken
Well-Known Member
Brand New and it's all cracked like that? WTF 🤯