$2.5k fat bike: Trek vs Giant vs Specialized vs Framed Bikes

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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby mtbdudex » December 6th, 2019, 12:36 pm

jlovett wrote:Final weight running tubeless with 3.8's?


Bikes ready, picking up on way home.
29lbs 10oz on shop scale, that’s with 8oz of orange sealant in each tire.

Was 31lbs prior, I consider this to be huge as it's less wheel inertia.

Will ride tomorrow at Brighton.


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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby c0nsumer » December 6th, 2019, 12:53 pm

8oz?!? Wow.

FWIW, I use 3.
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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby mtbdudex » December 6th, 2019, 1:00 pm

c0nsumer wrote:8oz?!? Wow.

FWIW, I use 3.


Tyler, the mechanic at Hometown bikes, told me he uses more for the initial tubeless install.
Then 6-8 months later, he will take the tire off, clean it out, and use 3-4oz, and found that's best for a good quality longlife tubeless install.
To do the initial seal of many tiny leak points, etc.
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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby c0nsumer » December 6th, 2019, 1:09 pm

Interesting technique. I guess it'd work. But most of what needs sealing is along the bead and removing the tire breaks that anyway. And I'd argue that if your wheel is leaking enough sealant to need 2x a typical amount, then the leak location should be fixed, not just dependent on the sealant to build up and clog it.

I just put 3-4 in (depending on the tire -- the better the tire the less I need) and it's good. Have not yet had an issue doing that across multiple wheelsets and tires.
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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby mtbdudex » December 6th, 2019, 1:21 pm

Maybe as a bike shop they want to be safe and conservative for less customers coming back with issues.

For my 2nd set of rims, which will arrive next week, I’ll go your route.
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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby amadkins » December 6th, 2019, 1:23 pm

c0nsumer wrote:8oz?!? Wow.

FWIW, I use 3.


Me too.
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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby TimTucker » December 6th, 2019, 1:25 pm

I'd think that long-term it doesn't really matter that much to have put more in on the initial application.

When I've seen measurements in the past, the dried weight of most sealants has been only 10-15% of the initial weight.
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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby c0nsumer » December 6th, 2019, 1:31 pm

mtbdudex wrote:Maybe as a bike shop they want to be safe and conservative for less customers coming back with issues.


Maaaaaaye, but it sounds to me like somewhere between the intersection of someone who can't set up tubeless right, someone setting up wheels for customers who won't notice A CUP of sealant in their wheels (shake the wheel and this'll immediately be obvious), and maybe someone who doesn't trust tubeless to work right.

Or maybe they don't want to deal with customers who don't check their sealant periodically.

It just sounds real wrong and like poor practice on behalf of a shop.
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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby jthomp » December 6th, 2019, 2:12 pm

c0nsumer wrote:
mtbdudex wrote:Maybe as a bike shop they want to be safe and conservative for less customers coming back with issues.



Or maybe they don't want to deal with customers who don't check their sealant periodically.



This is where I'd place my guess. A LBS probably sees most of its customers never performing routine maintenance ie, checking sealant level on their bikes. More sealant should dry out slower than more sealant and provide a customer more miles/months of use.
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$2.5k fat bike: Trek vs Giant vs Specialized vs Framed Bikes

Postby mtbdudex » December 7th, 2019, 5:37 am

mtbdudex wrote:
jlovett wrote:Final weight running tubeless with 3.8's?


Bikes ready, picking up on way home.
29lbs 10oz on shop scale, that’s with 8oz of orange sealant in each tire.

Was 31lbs prior, I consider this to be huge as it's less wheel inertia.

Will ride tomorrow at Brighton.


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amadkins wrote:
c0nsumer wrote:8oz?!? Wow.

FWIW, I use 3.


Me too.


Ok, just checking how “light” this bike could be...
Subtract 4oz from 8oz each tire too much sealant, 8oz less
29lb 2oz, nicer ....

Subtract 6oz the smartphone bike mount that is on it while weighed,
28lb 12oz , nicer ..
that’s with pedals and 1 water gage mounted.

Not sure how much lighter a 27.5” wheel front suspension fattie bike can be, this has got to be close to it.

Side bar:
I actually like this phone mount much better than others I’ve used, it’s $20
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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby mtbdudex » December 10th, 2019, 11:10 am

My Custom Sunringle Mulefut 80 6Fattie Wheelset will be delivered tomorrow Wed 12/11, I'll do tubeless myself.

I've read this thread, lots of advice there.
As a first timer any things stand out?
I like the idea of having color matching rim strip, geeky.
https://forums.mtbr.com/fat-bikes/mulefut-sl80-rims-tubeless-1054674.html
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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby c0nsumer » December 10th, 2019, 11:15 am

Be sure you put some sort of spacer on the rim along the valve stem. Otherwise the nut will tighten down against the flared base of the valve and you won't get a good seal.
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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby mtbdudex » December 13th, 2019, 5:20 am

I’d like to match the beautiful blue of my 2020 Alaskan carbon frame with the strip, instead of using the Sun Ringle black strip, what are my options?
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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby c0nsumer » December 13th, 2019, 6:18 am

Wide satin ribbon works fairly well, but will be more of a pain in the butt. Fancy Duck Tape also works, if you put one strip backwards (design showing through) then another strip or two right-side round.
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Re: $2.5k fat bike: Trek vs Giant vs Specialized vs Framed B

Postby mtbdudex » December 13th, 2019, 7:17 am

So the purpose of the Sun Ringle black strip is to block out the cut-outs then for tubeless .. while for tubes you just leave them naked and the tube shows thru.
For colored effect 2 options then?
Option 1: you can line the inner wheel wall with some colored material, then the black strip is there for "structure", then the sealing tape.
Option 2: Like you mention, some fancy lightweight duct tape, cut to correct width, then sealing tape

Does anyone make a specific colored strip or too specialized a market?
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