Making my Muk a little bit Greasy.

extremedave

Well-Known Member
Team MTBNJ Halter's
So a stock Mukluk is a weighty thing. I decided it was time to address that and being me I wanted to do it (relatively) inexpensively.
Luggage scale. No guarantees on accuracy but it says Samsonite on it dammit, that's a fine upstanding brand!


Step one was the great Rolling Darryl Rim Drilling Project. Been wanting to do this since buying the bike. But a combination of time constraints and sheer terror put me off it. However our own Michael.su suggested a step bit instead of a hole saw. As hole saws and I don't get along this was the push I needed.
I condensed this into one picture. Here's some tips.

Made a wheel holder out of scrap wood. Now doubles as handy fatbike stand. Maybe I would have made it narrower to hold the wheel a little tighter if I did it again, but otherwise worked well.
Speed matters. The step bits seemed happiest at lower speeds with some torque. I was tentative at first as I didn't want to burn the bit but it held up well.
I went with 1 3/8 although many have done 1.5. Got the bits at harbor freight. Set came with a smaller bit that drilled way faster so I started with that and finished with the larger.
I used an 18v dewalt cordless drill and killed both batteries before finishing. Sucks to clean up twice so either use a good corded drill or have more battery. Ended up using a 40 year old, smoking and screaming black & decker antique to finish.
Making a reusable template out of tape and using an automatic center punch saved a tremendous amount of time laying out wheel #2.
I got really lucky and didn't drill opposite the valve, which is the weld. Don't drill the weld.
It's a really messy job. Just so you know.
I saved about 220g per wheel, so about a pound total. Was it worth the time? JimV says hell no, 😀 but I'm happy with the results. I used an upside down strip of duct tape for orange-ness with a layer of gorilla tape over that. Still tubes in there.

Almost forgot! Coolest tool I'll never use again is the internet-suggested swivel head deburring tool. It's like carving aluminum only better.
http://www.generaltools.com/482--Swivel-Head-Deburring-Tool_p_156.html


During all this a buddy offered me a used set of Vee Snowshoes. I had no idea a 4.7 tire fit on the Muk. That saved a pound per wheel over my Nates! I've run HuskerDu's and the tires were fine but smallish, which exacerbated the Muk's low BB issues. I have some self steer issues in the dry but otherwise I'm pleased with the Vee's traction and size.
After pic:

The last thing was the fork. Found out salsa now sells the Beargrease fork separate so I thought about that or a Carver maybe. I also looked into eBay Chinese carbon forks but aside from general sketchyness they all use the newer Muk and BG length not my older, shorter. I almost pulled the trigger on a new BG fork but a used one popped up on pinkbike with a very favorable exchange rate. My frame will run a tapered steerer using a new lower cup, which salsa was nice enough to research.
http://salsacycles.com/culture/rockshox_bluto_fit_chart_for_salsa_fatbikes
The fork was good for another pound of fat shedding fun.

So finally the results. Weight with pedals and stuff: 32.30 lbs. I thought it was going to be in the 31lb range but I overestimated my stock fork weight. Math is hardness. I could take the pedals off.
Costs:
$60 tires
$135 used Beargrease fork, shipped. Yay Canada!
$33 Lower headset. Thanks to John at cycle craft for doing it while I waited. Had a gift card so, free? Need a ruling here.
$20 drill bits (I should include the hole saw I bought a year ago for this...)
$248.00 total. $62.00 per pound. Not too bad. "That'll be $700 dollars." "Wow, what a great price, I just saved 20 grams!" 😉

The bike is faster and definitely more fun. Although the newer stuff is close to this weight (or less) out of the box I already own this and for not all that much cash made a big dent. Result.
 
On the one hand.... The bike looks great! On the other hand..... You've got SNOW?!?! No fair!

Enjoy!

Dan-
 
Nice Dave, I was wondering if you ever got around to drilling those wheels...
And yeah, those rotary deburring tools rule. I've been using them for work forever.
They also make them with interchangeable tips so you can buy a bunch of different tips for a variety of materials and applications. 😉
BTW, I ordered a Motobecane Boris that should be shipped end of Jan. 🙂
looking forward to joining the fatty club.

Do you still have the Nates?
I think I may need to change my tires right away after I get it...
 
Dan-it was kinda a freak storm that I was lucky enough to be in the middle of. Sorry! 😀 And thanks.

Michael-it just took a while to find the time. Thanks for the step bit idea btw!
I do still have the Nates, what does the moto come with?
 
don't know what stock cassette came on your muk but i lost close to 5 oz off the rear by upgrading to a SRAM xo casette from the original
 
Looks great Dave
When I had my Muk, besides throwing on hydraulic brakes, one of the first changes I made was to the crank. The thing that came on the Muk was a boat anchor. If you put on a X5 or a X9 crank on, it will definitely shave a bit of weight and stiffen the bike.
 
Convert it to a 1x and that will help shed some unwanted pounds as well. All it'll cost is a ring and they make them all the way down to a 26t so you can get what suits you best
 
Tea-I threw on a nice drivetrain I had lying around when I got the bike so that's about as light as its gonna get. Maybe I'll drill holes in the seat post. 😀
Andy-I've seen the X5 cranks for pretty cheap and was thinking about it.
JimV-I thought about that yesterday as I might have used the big ring once. It's nine speed now but all XO in the rear which I want to keep, just couldn't decide if I'd have enough low gear. 26? Hmm.

If I got the X5 cranks which are 10 speed would they work with a 9 speed chain?
Thanks gang.
 
Looks great - can't help singing the theme song to the dukes of hazard. Is that the Fat Daisy Duke?

I been trying to come up with a name for it, that there might be a contender. 😀 I gotta find some 01 stickers then, YeeeeHaaaa!
I was leaning towards Badluk myself but that's funny.
 
Nice write-up, Dave. Thanks for sharing. Great to hear you shed some 4 lbs and that the handling is significantly improved.

I like the look of the carbon fork compared to the original orange fork!
 
Looks great!

Maybe a little orange pinstripe on the fork, with a Daisy at the top 🙂

can you post a larger, high res pic? would like to take a closer look.
 
Jackx-thanks! Fwiw it's actually aluminum; the blades are pretty wide so it looks carbon-y. I liked the idea of an oem metal fork vs a carbon aftermarket as I occasional do stupid things out there. 😀. Plus the price was very right. The headset area looks so much cooler with the external cup too.

Fidodie-(autocorrect hates your name btw) what did you want to see? If I don't already have something I can go shoot it. Didn't want to hog too much bandwide so kept pics small.
I have a set of orange "Salsa" stickers coming for the fork from an outfit on eBay. $12 shipped for a sheet of stickers, can't beat that. I do like On-Ones cupcake tho!
FOOOCFAT-118-6.jpg
 
Add me to your dictionary!

the photobucket pictures aren't any larger. Just a whole bike pic at full res would do it - maybe a link to some public disk space?

decals, not stickers 😀 Rule #57

Nice.
 
Add me to your dictionary!

the photobucket pictures aren't any larger. Just a whole bike pic at full res would do it - maybe a link to some public disk space?

decals, not stickers 😀 Rule #57

Nice.

Decals. Got it.
I texted it to you. That work? I tried to save it at full resolution on photobucket, didn't seem to help.

I love how autocorrect gets pissy about swear words. It won't try to fix them but it sure as heck won't help you spell them either. 😀
 
Jackx-thanks! Fwiw it's actually aluminum; the blades are pretty wide so it looks carbon-y. I liked the idea of an oem metal fork vs a carbon aftermarket as I occasional do stupid things out there. 😀. Plus the price was very right. The headset area looks so much cooler with the external cup too.

Thanks for clarifying, Dave. I was going to say "black fork" but then I wrote "carbon" regarding the color, not material. I forgot that you weren't going with carbon material, so I see now that my word choice was not the best.
 
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