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SteveF

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Discussion starter · #1 · (Edited)
So I ordered a Fatillac, though it probably won't be ready for a couple of months yet. I'm working with Zinn Cycles for the full build-they responded to my inquiry when I thought I was emailing the frame builder so I guess they're partners or something, at least for full builds. I have some questions regarding the bike I am having built and I'm hoping others can weigh in.

How are the pivots and bearings in the Fatillac-I assume they're standard parts that are readily available? Are the pivots pretty well sealed and low maintennance? I don't really see any specifics about servicing them on the Lenz website (I may have overlooked it), things like torque specs, exploded view, parts numbers or descriptions, that sort of thing. Maybe a hard copy comes with the bike. This will be my shoulder/winter season bike so sloppy conditions will be encountered, so I hope the pivots are up to it.

Another specification I can't find is the actual/virtual seattube length for a size small frame. I'm just wondering if the 120mm travel dropper post I have in mind will work with my saddle height.

I asked the Zinn fellow I'm working with (Nick) whether I should go with 26" or 27.5" wheels and he steered me toward 27.5". I've always run 26" fat so that will be new to me but I think it'll be a good way to go. Hopefully the larger wheels won't crowd my size small frame too badly or raise the bottom bracket too much. What wheelsize are other Fatillac owners running and what would be your preference if you were equipping one today?

I'm having Nextie rims with Hope hubs built into wheels for it-I have carbon rims on several other bikes but this will be my first fat carbon wheelset. I've really come to hate the bother of doubling up rim strips and tubeless tape on aluminum rims with cutouts-that's my main reason to go with carbon. I'm hoping these wheels will be reliable-the Nextie/Hope parts seem generally well thought of. One question-do Nextie require full width tubeless tape or just one wide enough to cover the spoke holes? My build sheet from Zinn specifies full width so I assume that's what is required. I'm going with 27.5"x4" VanHelgas and will probably add some studded tires on a 2nd wheelset eventually.

Anyway, I'm pretty exited and hoping it's going to be a good investment for me. As I mentioned in my "fat bike foot troubles" thread a while back, the rigid fatbike ride has simply become an issue for me to the point where I struggle to enjoy riding my Voytek much anymore even with a Mastodon fork.
 
Zinn is tall people centric, right? Many people will disagree, but I think if you are not getting a custom frame, you should be on 26" standard wheels and shorter than average cranks. For the same pedal clearance and more standover and more dropper travel compared with 27.5 with too long for your height cranks.

IMO full width tape is more reliable for essentially zero weight penalty.
 
Nick has handled Lenz communication for a long time. He just finally started his own thing but is still apparently partners w/ Devin. Source: I worked with the both of them on an LB frame back in 2014.

At least for the frame, the bearings are all sealed and normal off the shelf items. It's a fairly simple bike but I can't speak to how it holds up w/ mud riding because we generally don't ride mud in CO.
 
So I ordered a Fatillac, though it probably won't be ready for a couple of months yet. I'm working with Zinn Cycles for the full build-they responded to my inquiry when I thought I was emailing the frame builder so I guess they're partners or something, at least for full builds. I have some questions regarding the bike I am having built and I'm hoping others can weigh in.

How are the pivots and bearings in the Fatillac-I assume they're standard parts that are readily available? Are the pivots pretty well sealed and low maintennance? I don't really see any specifics about servicing them on the Lenz website (I may have overlooked it), things like torque specs, exploded view, parts numbers or descriptions, that sort of thing. Maybe a hard copy comes with the bike. This will be my shoulder/winter season bike so sloppy conditions will be encountered, so I hope the pivots are up to it.

Another specification I can't find is the actual/virtual seattube length for a size small frame. I'm just wondering if the 120mm travel dropper post I have in mind will work with my saddle height.

I asked the Zinn fellow I'm working with (Nick) whether I should go with 26" or 27.5" wheels and he steered me toward 27.5". I've always run 26" fat so that will be new to me but I think it'll be a good way to go. Hopefully the larger wheels won't crowd my size small frame too badly or raise the bottom bracket too much. What wheelsize are other Fatillac owners running and what would be your preference if you were equipping one today?

I'm having Nextie rims with Hope hubs built into wheels for it-I have carbon rims on several other bikes but this will be my first fat carbon wheelset. I've really come to hate the bother of doubling up rim strips and tubeless tape on aluminum rims with cutouts-that's my main reason to go with carbon. I'm hoping these wheels will be reliable-the Nextie/Hope parts seem generally well thought of. One question-do Nextie require full width tubeless tape or just one wide enough to cover the spoke holes? My build sheet from Zinn specifies full width so I assume that's what is required. I'm going with 27.5"x4" VanHelgas and will probably add some studded tires on a 2nd wheelset eventually.

Anyway, I'm pretty exited and hoping it's going to be a good investment for me. As I mentioned in my "fat bike foot troubles" thread a while back, the rigid fatbike ride has simply become an issue for me to the point where I struggle to enjoy riding my Voytek much anymore even with a Mastodon fork.
I would avoid using Hope hubs due to bearing issues.

Depending on which frame you ordered (4" vs 5" rockers), the newer frames should fit up to a 27.4 x 4" as well as a 29 x 3". I have both wheel sets, my winter wheels are studded which I'd recommend. I believe the 4" rockers with 120mm travel are the only ones that fit a 29 x 3".

Dropper post is rider dependent, frame typically maxes out at a 120 mm dropper, I've had a few Fatillacs and have never been able to fit one longer than 120mm; I'm 6', 33" inseam, 165mm cranks.

Fatillacs are old school geo, short ETT, so if you normally ride a Large, you might want to consider getting an XL tube set with a Large standover.

You'd be better off buying direct from Devin, just saying ...
 
Discussion starter · #7 ·
Any of you guys riding a smaller frame, a small like I ordered or maybe a medium? I do wonder if a 26" wheelset would be a better fit for my small frame. I don't think the 4" rockers were listed as an option so I opted for the 5" but I think I'll contact Nick and see if 4" is possible. Oh, I found the pivot/torque specs and parts list on the Lenz website so I'm good there.
 
Any of you guys riding a smaller frame, a small like I ordered or maybe a medium? I do wonder if a 26" wheelset would be a better fit for my small frame. I don't think the 4" rockers were listed as an option so I opted for the 5" but I think I'll contact Nick and see if 4" is possible. Oh, I found the pivot/torque specs and parts list on the Lenz website so I'm good there.
26" wheels are dumb, unless you're running super fat.

The bigger rockers get you more travel, but less tire clearance.

Being what it is, I'd take a Fatillac with 120mm travel (4" rockers) and more tire clearance.

I run a CC Inline Coil and a modified Mastodon 140mm with a coil, it works awesome year round.
 
FS fatbikes need to be ultra beefy due to the extreme gyroscopic precession forces of the wheels, Foes makes some of the stiffest bikes in the industry, for all applications. This is a natural marriage for fatbike FS. The Mutz has been the best fatbike thing I've ever bought. Running 26 Wrathchild, but Dillinger 5 was my favorite. The entire industry isn't quite there yet. For a winter bike, an air spring fork is asinine. Fumbling with a pump last ride to balance out my front/rear spring rate was a pain in the ass in the cold and it's much more necessary in the winter IME where temps vary a lot. But I digress. For this year's extreme low-snow conditions and still exposed roots/ice, the FS fatbike has been so on-point it's ridiculous (fun).
 
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FS fatbikes need to be ultra beefy due to the extreme gyroscopic precession forces of the wheels, Foes makes some of the stiffest bikes in the industry, for all applications. This is a natural marriage for fatbike FS. The Mutz has been the best fatbike thing I've ever bought. Running 26 Wrathchild, but Dillinger 5 was my favorite. The entire industry isn't quite there yet. For a winter bike, an air spring fork is asinine. Fumbling with a pump last ride to balance out my front/rear spring rate was a pain in the ass in the cold and it's much more necessary in the winter IME where temps vary a lot. But I digress. For this year's extreme low-snow conditions and still exposed roots/ice, the FS fatbike has been so on-point it's ridiculous (fun).
I've been soooo jealous of the few full suspension fat bikes I've seen on the trail this winter. Definitely the tool of choice so far.
 
Thanks. I was leaning toward the Mutz for the fatter rear tire clearance but it's just so overbuilt for my needs. Your endorsement of the Fatillac got me to give it a 2nd look. I think it'll work well for me!
I’ve had two Mutz and two Fatillacs, there’s really no comparison, the Fatillac is much more agile and fun, the Mutz is great for going straight.

I still own a Fatillac.
 
Have you owned the V3+ Mutz w/modern geo?
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Discussion starter · #19 ·
Don't get me wrong, I'm confident that the Mutz and Fatillac are both fine bikes. I just feel the Fatillac suits my cross-country-ish riding style and opportunities better, as alluded to in Donkeeboys personal experience comparison above.
 
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