Fat Bikes / Fatbikes

Hi.

Sorry for the crazy late reply.

I live in Norway and 'fatbike' around in the Winter. The local sports shops do some Nice fully rigid fatbikes With 1x drive Chains at reasonable prices. They come up on the local facebook trading site too. I'd og With one of them. But then get a bit spendy on the tyres.

If you shop around £1000 will be doable.

I saw some really nicely specc'd ones at that price on clearance at the end of Winter. But they also roll out the left overs before Winter to Clear them out. Pretty sure my fatbike cost 3 times that, and isnt any better. In fact the fact that I built it when fatbike parts were rare mean, and even 1x drivechains needed slight bodging means a £1k OTP would probably be easier to live With.

Is anyone lacing fatbike width rims onto standard MTB disc hubs or are they all special hubs?

You can use normal hubs.

The offset surlys do.

My front is a standard lefty.

If you're worried about bracing angle you can lace the spokes to the opposite side of the rim. Fuck doing the calcs on that though.

Me, worried about bracing angle? Unlikely.
I pick parts and throw them at a wheel builder with my credit card.
I should be googling for Surly offset wheels?

Surly and Charge both had frames which used offset 135mm rears.

It's not clear what problem we're trying to solve for you.

The hubs aren't the problem.

The frame and wheel design is. How do you plan to get your chain past a 4.8" tyre?

Surly pushed the rear hub 17.5mm more to the drive side to increase chainline.

Also if your rim is 80 - 100mm wide with a fat tyre on it. Pushing a wheel into 100m spaced forks will be tricky.

This is why the new standard is to use extra wide hubs and frame/fork spacing.

No problem, I wanted to see if I could find a fatbike wheelset that I could throw at the Inbred.

Why 4.8"? Is that the Surly tyre size? There are 3" tyres.

Basically I have no idea, I was looking at the Inbred thinking "hmm... I could fit bigger rubber on this" but I don't actually know how much bigger.

4''+ is fat bike
3'' is 29er+

Surely that drepends on clearance.

Even a 3" tyre on a 45-65mm rim (semifat) won't fit on most MTBs.

Measure.

I have a semi fat set up on the cargo bike using Unicycle rims and 3" tyres.

There'll be a combo that works.

This is a 2.4" racing ralph on a kris hole rim (have these. Bomb proof rims).

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No need for fat hubs there. Chainline shouldn't be an issue.

It has 26" wheels. Don't be pushing your new-fangled 29er shit on me. 26" is what the cool kids ride.

ie. http://surlybikes.com/parts/wheels/knard_26x3

This is what I want to find out.

Knard 26x3 "designed for 50mm wide rims. Requires minimum of 35mm wide rim to safely engage bead hook"

I have no idea what rims I currently have. Hang on...

that knard isn't going to fit on anything but a mad narrow rim.

Wider rim and 2.2-2.5" will be betterer

The rim in that pic is 47.2mm
The 26" rabbit hole rim is 50mm

I'd buy the rabbit hole rims and run standard 2.3" mtb tyres. Loads of options.

Fat specific tyres are overpriced, and forcing a fat tyre on a skinny rim gives a shite profile.

Surly Tyre Geo may come in handy... http://surlybikes.com/uploads/downloads/13827_Update_Tire_Geo_Chart_v2.pdf

https://www.lfgss.com/conversations/260009/

It ain't gonna fit is it?

No.

"The Knard 3.0 tire on a Rabbit Hole 50mm rim will be 75.8mm/77.7mm (casing/tread) wide and will have a diameter or 779.4mm (at 19psi).

The Knard 3.0 tire on a Velocity P35 will be 72.6mm/76.7mm wide and have a diameter of 778.6mm.

A Schwalbe Racing Ralph 2.4" tire will be 66.0mm/59.2mm wide and have a diameter of 752.2mm when mounted on a Rabbit Hole rim (at 35psi).

A Continental Trail King 2.4" tire will be 65.5mm/57.1mm wide and have a diameter of 759.5mm when mounted on a Rabbit Hole rim (at 35psi)."

I need to get a ruler to the stays.

How the fuck did I fit 2.5s to my hardtail back in the day?

That's fucking awesome!

Personally I'd have gone with SS and a coaster brake, but aside from that, it's utterly awesome.

May have to look into getting one of those.

On skinny rims.

We all had them back in the day.

Yeah, 16 years ago. My road rims are probably wider than my hardtail's rims.