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New Schwalbe Jumbo Jim Fat Bike Tire Rolls Large, Treads Lightly

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schwalbe jumbo jim fat bike mountain bike tire

We spotted the new Schwalbe Jumbo Jim fat bike tire aboard the new Felt LEBOWSKe electric fat bike, and they say it’s the first appearance of the new tread.

Claimed weight is around 1,040g, which puts it on par or even under the weights of many 26″ downhill mountain bike tires. The tread pattern resembles Schwalbe’s Rocket Ron XC tire, but with a lot more space between the knobs. Sidewall markers indicate it’s got their Pace Star rubber compound for low rolling resistance and good durability. Underneath is the Evo carcass, which offers improved puncture and tear protection, combined with Lite Skin sidewalls. The latter is found more on their cyclocross and road tires and is a thinner, more supple sidewall used to save weight and offer a more compliant ride.

There’s nothing suggesting these are tubeless ready, though, but we suspect it’s a see what the market thinks move and more options may follow. Additional pics below…

schwalbe jumbo jim fat bike mountain bike tire

Size is 26×4.00.

schwalbe jumbo jim fat bike mountain bike tire

SchwalbeTires.com

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23 Comments
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Mindless
Mindless
9 years ago

Needs to be 5″

zombinate
zombinate
9 years ago

This is fantastic. Other tire manufacturers besides Innova and Vee is good news.

Maverick Moto
9 years ago

As with nearly every other fatbike tire on the market, just because it’s not listed as “Tubeless Ready,” doesn’t mean that it’s not tubeless capable. I can’t wait to see it in person!

shafty
shafty
9 years ago

It’s designed for an obsolete rim diameter. Should have been designed for 650B rims instead. It’s proven to be a much more versatile diameter. Not too big, not too small, and stiff enough for most riders. I usually need more rubber.

Badbeard
Badbeard
9 years ago

Because there’s such a glut of 650b fat bikes out there…

Jake
Jake
9 years ago

So pointless to come out with a “fat” tire that isn’t at least 4.5″. And for a 650b fat bike rim? What?!

Tad Dickman
Tad Dickman
9 years ago

shafty, are you being sarcastic or just not read a shred of the article? They are fat bike tires… all fat bikes are on 26″ wheels.

Ryan
Ryan
9 years ago

It’s about time Schwalbe joined in, now I just need to get that new Bucksaw.

Drew Diller
9 years ago

Tad – trolls be trollin’, and if he’s not doing that I guess he’s just another Hype Regurgitator.

Jason
Jason
9 years ago

(deleted)

denny
denny
9 years ago

So much stopid words, haha! This tire, it is the best for fatbike! We waited for Schwalbe long times, it is good they come with it πŸ™‚ πŸ˜€

But….HANS DAMPF 26×5″ is next right!!!!! πŸ™‚ πŸ˜€ πŸ˜€ πŸ˜€ πŸ˜€

Cranky
Cranky
9 years ago

@Jason. Go home silly troll.

Hans
Hans
9 years ago

Nice tire for trailriding. Man, that weight is super low. Can’t wait to get them.

Mindless
Mindless
9 years ago

I want Continental’s Black Chili rubber in a 4.7″ tire. Rear and front specific.

Bernard
Bernard
9 years ago

New developments are nice and all, but on the skinnier side of things, the Schwalbe One tires are out of stock since last april here in the Netherlands. Lets get that show on the road first shall we.

(Apperently only the tubeless versions are out of stock by the way)

FatBikeBMX
9 years ago

More options is a good thing! Way to go Schwalbe.

carbonfodder
carbonfodder
9 years ago

Husker Du’s are ~1300g. Missions can be up to ~1800g. No matter how you slice it, these bad boys are light. And yes, I am in line for a pair. I will take another 1.3lb off my fatty’s rotating mass with these.

More cushion, less pushin’ (Paraphrasing Spinal Tap badly).

TMFD
TMFD
9 years ago

Frustrating to see yet another company jump on board to the 3.8 – 4.0 market. There are SO many options at that size. With only Specialized Ground Control and Surly Bud / Lou in the 4.6/4.8 category – I can’t help but to think the first GOOD option at 5″ will sell in a serious fashion. Like Denny said – a Hans Dampf in 5″ would be absolutely FANTASTIC!

BykMor
BykMor
9 years ago

26×4.0 is going to be the most popular size for most people. The Salsa Bucksaw is tuned for 4.0 rubber on a 65mm rim. They found it saved weight, rounded out the tire profile, reduced autosteer and gave the best rolling dynamics. 5″ rubber is nice for uber floatation situations, but that’s for a “fat bike tire”. We’re about to enter a world where 4.0 is an “mtb tire”.

slamman
9 years ago

will be stocking this at @slam69 soon as we can. 4″ fatbikes are the perfect mtb machine. bring it on. #fat69

blits
blits
9 years ago

Hi, new to the fatbike! I’m building a full carbon fatbike with 65mm carbon rims. Can I use 4.6″ tyres on my 65mm rims?

Zig
Zig
9 years ago

Thin sidewall is no good for trail riding.

DirtySprockets
DirtySprockets
9 years ago

http://www.schwalbetires.com/bike_tires/off-road_tires/jumbo_jim

Read more talk less….. Jumbo Jim will be available in 4.0 and 4.8 also
with Snake skin or without.
I do have a similar concern about the sidewalls holding up to Trail riding. I am in love with
my HuDu’S, yes 1300ish but they roll like a dream, have perfect shape for dirt. And are tough as nails with 120tpi. I ride them hard and no issues.

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