|Stuck On You Part 2!|
The Subject: A Hope Pro Evo II hub with a SRAM 9 speed cassette with the individually mounted cogs. Yes......they were stuck on! It wasn't critical to getting to the bottom of my problem, but you'd rather not have to deal with those teeth. At least I didn't. The Hope Pro evo II has removable/swappable end caps for quick release or through axles, so you simply pop off your end cap. Then this allows a tool free removal of the cassette free hub body, which reveals the free hub mechanism. You can see what that looks like on the left here.
Now I could remove a couple of the smaller cogs off the cassette and then bang on the backside of the cassette with a rubber mallet to push off the cassette and get that out of the way.
As I worked more and more grease away from the mechanism, I noticed two things. One- The grease coming off was silvery. That's never a good sign! This means the grease is contaminated with metal. Hopefully just worn metal from years of coasting!
Two- The pawls were not "springing back to life", and this was cause for concern. Maybe something really did break. More applications of degreaser and the mystery was solved. I had a complete failure of all four pawl springs!
|It's a dead parrot! No! Its pining for the fjords, or simply stunned!|
The Solution: Well, now its on to the solution. I have a spare Hope Pro Evo II wheel sitting around that I could scavenge the free hub body off of, but I am not desperate to ride the Fargo just now. So, I won't be stealing that free hub body now. My second option, of course, is to just replace the whole shootin' match with a steel free hub body and that would also solve my issues with the cassette digging into the alloy bodied free hub. I'm thinking this sounds like the reasonable choice, given that I typically don't buy XT level cassettes for my gravel/rough stuff bikes. It really doesn't weigh all that much more either. I'd gladly trade off the minimal gain in grams for the ease of servicing the cassette/free hub.
So, I think a steel free hub body will soon be on its way, and this nearly seven year old hub will be back in service again on the good ol' Fargo Gen 1 rig. I won't necessarily be needing the old bike for a bit, so I'll be okay with waiting on that. Heck- it's getting to be fat biking season, and the single speed bikes are all ready to roll in the meantime. Fall is definitely single speed time around here anyway.