[Closed] Let's see your 29+/650B+ & other "Nearly-Fat" Bikes

[url= https://www.kickstarter.com/projects/1471361938/singular-rooster-29-bicycle/posts/957615 ]sad face...[/url]

[URL= http://i1272.photobucket.com/albums/y394/dansipods2/A30E2E10-BC67-48BD-A98C-98127DDA816E_zpslp7erxm5.jp g" target="_blank">http://i1272.photobucket.com/albums/y394/dansipods2/A30E2E10-BC67-48BD-A98C-98127DDA816E_zpslp7erxm5.jp g"/> [/IMG][/URL]

Replaced the moots/thomson ti stuff with ENVE stuff since the pic

Clobber, I'm sure the Rooster will be great when it arrives, I was close to pulling the trigger on one as well but went for a Krampus instead in the end as I preferred the colour (bike tart I know!) 😉

The Krampus has not disappointed.

How fat is nearly fat?

Mine is currently in gestation phase...
I have a Krampus frame and fork and pile of bits... just waiting on brakes (SLX or XT), tyres (Maxxis Chronicles) and Rims (likely Duallys)...

How fat is nearly fat?

How big's a can of worms?

26" Dirt Wizzards are nominaly 2.75, but are actualy only a few mm bigger than conventional Maxxis 2.4 on the same rims. So they're only 'semi skimmed' on 50mm rims. So it's as much to do with the rim as it is the tyres.

The only 650b+ tyre at the moment is a WTB 2.8" one.

Then: Half fat (26'') Fortitude:

[URL= http://i225.photobucket.com/albums/dd279/letmetalktomark/ST830243.jp g" target="_blank">http://i225.photobucket.com/albums/dd279/letmetalktomark/ST830243.jp g"/> [/IMG][/URL]

Now: Half fat (29er+) Fortitude:

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Just about to build up a Rohloff into a Dually to build one of these:

[URL= http://i1281.photobucket.com/albums/a518/konstantventer/8C7C3D8F-9C09-4606-B1D9-31ACDAE1FABD_zpsb7iganbi.jp g" target="_blank">http://i1281.photobucket.com/albums/a518/konstantventer/8C7C3D8F-9C09-4606-B1D9-31ACDAE1FABD_zpsb7iganbi.jp g"/> [/IMG][/URL]

My second Krampus, a mobile Maxxis advert!
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Here's mine...

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Wait - hang on a minute, that's not right. It should look like this...

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zippykona - Member

How fat is nearly fat?

I'd say those tyres which are bigger than the norm but not your fully fat 4"+ ones. 29+ is usually considered to be 29x3" tyres, but as others have said many 2.4"/2.5" tyres come up very big on 50mm rims.

Any interesting photos you can post are good though 😀

I love the semi-fat Fortitude, that looks like a bike to have adventures on; and what's that you're riding Sideways Tim? It looks really nice.

It's a 9:ZERO:7 Carbon Whiteout.

what clobber said 🙁

[url= https://farm9.staticflickr.com/8682/15147687004_47c366da54_o.jp g" target="_blank">https://farm9.staticflickr.com/8682/15147687004_47c366da54_o.jp g"/> [/img][/url][url= https://flic.kr/p/p5xRBj ]11th Nov; 018[/url] by [url= https://www.flickr.com/people/33319577@N03/ ]coastkid71[/url], on Flickr

[url= https://farm8.staticflickr.com/7499/15505459618_3083935bbf_o.jp g" target="_blank">https://farm8.staticflickr.com/7499/15505459618_3083935bbf_o.jp g"/> [/img][/url][url= https://flic.kr/p/pCawWE ]Pumpkin Pugsley-Halloween 005[/url] by [url= https://www.flickr.com/people/33319577@N03/ ]coastkid71[/url], on Flickr

[url= https://farm8.staticflickr.com/7538/15071550813_66d46afb5c_o.jp g" target="_blank">https://farm8.staticflickr.com/7538/15071550813_66d46afb5c_o.jp g"/> [/img][/url][url= https://flic.kr/p/oXPCYn ]Pumpkin Pugsley-Halloween 001[/url] by [url= https://www.flickr.com/people/33319577@N03/ ]coastkid71[/url], on Flickr

Bugger,wrong thread.

Coastkid are those rabbit holes on your Karate Monkey and is that a standard KM fork?

Edit:Actually don't tell me. I'm banned from spending any more money on my bikes for the remainder of [s]time[/s] the year 😐

Edit Edit: well, are they?

Coastkid,

How wide is that Maxxis Minion DHF coming up on the Rabbit Hole rim?

Cheers

Paceman

Sideways Tim - That is nice...!

How much does an aluminium whiteout frame and fork cost?

The new ones are quite spendy as they have a whole new tapered fork and through axles. They're £799. We do have some of the 190 frame/forks left in medium and large (black or silver) on offer at £550 though - they'll take 29+ too.

hmmppphh... I'm an XL will have to save for the newer one...

Bregante;
Aye they are Rabbit Holes on the Monkey
I did have 2.5 Minions both ends with Monkey Nuts in the rear with 3x9 and good chain clearance.
Tyre clearance is ok for sandy soil trails but not much clearance for mud so swapped out the rear 2.5 DHF for a 2.3 DHF.
A 3" knard fits in easy on Rabbit Holes and Monkey Fork- The Krampus fork is the same width. Only 483.0 mm in lenght compared to the Karate Monkey`s 468.0 mm fork.
Some folks have fitted krampus forks to KM`s giving slower steering and a slight increase in BB height.
I fitted a 1.5 degree offset headset to slacken the steering a bit on my KM and it rides way better ridgid.

Paceman; Nipped out to the ManCave and got the calipers out;

Rabbit Hole with Minion 2.5mm; Width 62mm, height 50mm

Rabbit Hole with 3" Knard Width 76mm, height 65mm

Its the air volume of the 3" tyre that gives it its float

Itchin for a Krampus frame for next year as have the wheels 😀

Rabbit Hole with Minion 2.5mm; Width 62mm, height 50mm

Shows how optimistic Maxxis sizing was, even on a 50mm rim it doesn't quite make 2.5"

Anyone know what width maxxis 2.4's come out as on Stans Arch rims?

Can't justify 29+, just wondering what the biggest that'll fit in my El-Mariachi is.

Rabbit Hole with Minion 2.5mm; Width 62mm, height 50mm.
Rabbit Hole with 3" Knard Width 76mm, height 65mm.
Its the air volume of the 3" tyre that gives it its float.

I've tried 2.4" Chunky Monkeys with my Rabbit Hole rims and found the same thing, the loss of air volume made them feel heavy and killed the floaty feel the true 29+ tyres provide, they weren't a patch on the Surly Knards which went straight back on. I've switched the Knards for Maxxis Chronicles for the Winter and they've been pretty good so far, not an out and out mud tyre but not bad overall with plenty of volume and a true 3" width.

Coastkid... If you're a fan of the Karate Monkey you'll love the Krampus I think.

[img] ?oh=ded5e7d6ce1c9fd1637e07cb3e2c7afe&oe=54D19734[/img]

[img] ?oh=1802322c8aae00ae2d77ec566fb9a2a6&oe=551CE723&__gda__=1423210028_16355a64fb8f13f1a31d44519b263a87[/img]

29 x 2,55 dissent on 47mm rim way before the world of 29+

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My jones and my 3/4 chumba with fat front and 26 x 3" rear

[img] ?oh=ba34a6297757dccef63f591387ee139c&oe=54E93EA2[/img]

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29+ black sheep

[img] ?oh=b2f57a74ce40948c4956df07ebb9892d&oe=551B83FF&__gda__=1424327599_eac260c337bffe362bc88338afc7a2c2[/img]

All mine at some point

[img] ?oh=5c7c572e256cff9cb66db556be69e3da&oe=5519CB8E[/img]

jones space frame with 3" rear for 3/4 fat action from 2012

See all this plus stuff was being bodged for yearsby loads of idiots, they've just given it a natty marketing label 😀

of sod, forgot the stooge

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i really need to sell some bikes :S

29 plus

[img][url= https://farm9.staticflickr.com/8618/15603888150_afd69dec96_k.jp g" target="_blank">https://farm9.staticflickr.com/8618/15603888150_afd69dec96_k.jp g"/> [/img][/url][url= https://flic.kr/p/pLS1jj ]DSC_0241[/url] by [url= https://www.flickr.com/people/82341552@N03/ ]mynottaur[/url], on Flickr[/img]

...and...

27.5

[img][url= https://farm6.staticflickr.com/5603/15602897459_99d8f4402a_k.jp g" target="_blank">https://farm6.staticflickr.com/5603/15602897459_99d8f4402a_k.jp g"/> [/img][/url][url= https://flic.kr/p/pLLVPr ]DSC_0237[/url] by [url= https://www.flickr.com/people/82341552@N03/ ]mynottaur[/url], on Flickr[/img]

Excuse me, that's a standard 27.5 not a plus. Oh well...

Here's mine in Narnia

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Some older photos of my Krampus...

[url= https://farm9.staticflickr.com/8379/8565949326_050006a5c1_c.jp g" target="_blank">https://farm9.staticflickr.com/8379/8565949326_050006a5c1_c.jp g"/> [/img][/url]

During an experiment with suspension...

[url= https://farm6.staticflickr.com/5473/9698669843_d635b25a0b_z.jp g" target="_blank">https://farm6.staticflickr.com/5473/9698669843_d635b25a0b_z.jp g"/> [/img][/url]

Must get a more recent pic of mine.
I've fitted a much shorter, higher rise stem and Fleegles. Makes it feel more stable at speed, but more comfy for longer rides.
I'm also building up an Alfine rear wheel for longer days out. The Knard sits surprisingly well on the Pacenti DL31 I'm using.

Currently running 2.4's on my Monkey but I NEED some fat rims!

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Crocodilian... I'm in awe of that saddle height you're running 😀

Some lovely bikes in this thread by the way, I've been trying to steer myself away from way too tempting photos of Stooges but you snook one in there Tazzy.

its a lovely bike the stooge, its just a little lost in a world of sexier bikes at chez taz, but every time i ride it, it makes me giggle so it's a definite keeper

How does semi fat compare to full fat, or put another way Bud fat? Tempted to get a second wheel for my Jones with a dually 29er. All of a dither as to what the benefits are and whether the semi will end up sat in the shed most of the time. Bud OD is near enough knard I think so can't be much in roll over ability. More suited to longer rides due to drop in weight and resistance?

jones with a 29+ is good fun, but for me my joneses are best with a fat front. Tried both and then fked the 29+ front off as it was just sitting there doing nowt

More out of curiosity than anything else, has anyone tried putting fat tyres (4"+) on normal with rims, or normal size (2.2 or less) tyres on 80mm rims, just to see like?

Ta tazzy. Maybe see if I can borrow one from biff before I do the same.

yep been done, have a look at a lot of the really early fat bikes and these all sorts of experiments, double skinny rims etc..2.4-3" downhill tres on 65mm rims all sorts

SIR.9+

[url= https://farm6.staticflickr.com/5608/15435832430_4aa376543e_z.jp g" target="_blank">https://farm6.staticflickr.com/5608/15435832430_4aa376543e_z.jp g"/> [/img][/url]
[url= https://www.flickr.com/photos/takisawa2/15435832430/ ]IMAG4084[/url] by [url= https://www.flickr.com/people/takisawa2/ ]pten2106[/url], on Flickr

How long do you think it will be before we see proper fat 4" plus tyres & 80mm 29er rims?

did some trials a few years ago with massive rims and tyres with a 36er and using tyres from coach trials, went like an avalanche downhill, corners..hahahahahahahahahaha

at some point it may happen, but I really cant see the point as there are too many compromises needed in the build and handling even with freaky geometry.

On a rigid 29er I think a 4" front with a 3" rear could be great fun. I don't think the market is big enough at the moment though for 29" tyres of over 4" to be produced. There're still very few 3" options although more appear to be on the way soon.

alex do 36" rims now

http://www.bikerumor.com/2014/10/16/ib14-alex-widens-rim-collection-to-include-fat-bikes-29-even-36/

Crocodilian... I'm in awe of that saddle height you're running

It's an XL frame too! It gets mentioned quite a lot. I'm not ridiculously tall, just have massive giraffe legs!

Stooge Klunker.......

[img] ?oh=d9913ac5566c4c2e17420045b7c5ce47&oe=5518FCB4&__gda__=1424566946_a49adf0240b4cf4954ba42aa258936dd[/img]

Was running this with a Gusset jump fork and a 2.4 upfront

[img] ?oh=d5a86d18e2bbcb38e9384edb06b2c5b8&oe=54D1B54F&__gda__=1423374720_7736e01e860309a8a24f649751b12845[/img]

After todays mud bath ride around the local woods and trails away from the coast after a weeks rain i would not hesitate to roll with 2.5 Minions if i owned a Krampus.
I am running 2.5 Minion DHF front/2.3 Minion DHF rear on my Karate Monkey, and would have been spinning a lot today on Knards,
[url= https://farm8.staticflickr.com/7511/15175351124_4f9b609106_o.jp g" target="_blank">https://farm8.staticflickr.com/7511/15175351124_4f9b609106_o.jp g"/> [/img][/url][url= https://flic.kr/p/p7ZDbU ]Karate Monkey - Mid Nov Woods cycle 003[/url] by [url= https://www.flickr.com/people/33319577@N03/ ]coastkid71[/url], on Flickr

Go on then ogle me Stooge.

[IMG] [/IMG]

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Maxxis Chronicles on my Krampus, much better than Knards in the mud.

Just about to build up a Rohloff into a Dually to build one of these

Pogo - love the Stooge Klunker.

Give me a couple of months to jump on the bandwagon. Probably sticking with 35mm Light Bicycle rims and whatever largish tyres I can find.

@ ir_bandito - is it really that bad an idea?

There seem plenty of Surly users running Rohloffs and track end style dropouts.

What's the issue?

PITA getting the wheel out.
To slacken the chain to knock it off the chainwheel, you need to slide the wheel forward. If you're using a speedbone or Monkeybone, that means loosening off the brake caliper bolts. Not only that but you'll want to be using a chain tug (Surly, naturally) to ensure no slipping unless you've got a solid nutted axle (which in itself is also a faff) so you'll need to loosen that off too. Once its all loose, you slide the wheel forward, take get the chain off, then bring it all back to get the wheel out. Then reverse the entire procedure to get it back in.

My first Rohly build was a Cotic Simple.
[url= https://farm3.staticflickr.com/2480/3818596714_8cdd2d1ec5_b.jp g" target="_blank">https://farm3.staticflickr.com/2480/3818596714_8cdd2d1ec5_b.jp g"/> [/img][/url][url= https://flic.kr/p/6PriLo ]DSC_0514[/url] by [url= https://www.flickr.com/people/20817429@N00/ ]ir_bandito[/url], on Flickr
Combined with my habit of getting pinch punctures due to riding like an idiot, I made myself very unpopular with 15 minute inner tube changes on many rides.

Ah. That all makes sense.

I'm hoping to forego the speed bone I have and use one of the cut outs in the dropout to locate the "Rohloff thingy" a la Surly. Genesis have confirmed the dropouts should be fine.

If I can't get this to work then I'm hoping the inboard brake placement may make things easier.

I'm all too aware if the disapproving glances and mutterings of a 15minute tube change with my Alfine/Fortitude set up 🙂

Which is why I'm getting a Fortitude Race frame with vert dropouts and using a chain tensioner. But shh, no-one knows...

Had so much faff over the years with track ends (see above), creaking EBBs, and slipping sliding dropouts, and even when chain tension IS right, inevitably the chainring goes out of concentricity so ends up cycliing slack/tight, I figure I'll stick to adjusting the one component that is supposed to be flexible (the chain).

Of course, once I get the belt-drive included, it changes again as they can't use a tensioner in theory.

I think you will have more of a head ache with a chain tensioner.
What you want is......"Mension"

[url= http://www.moonmenbikes.com/mension/ ]Moonmen Bikes Mension[/url]

I think you will have more of a head ache with a chain tensioner

Not convinced, in my opinion chain tensioners (a cumbersome addition) have always been a temporary solution to "singlespeeding" a bike, whereas EBB, slot dropouts (I never had an issue with my BMX when I was a kid and I used to hammer that virtually every day) and now mension are permanent solutions of vary degrees.
Yes I do agree that you may get a slight bit of oscillation with the chain ring and freewheel combined depending on the quality of parts, which translates as slack-tight-slack-tight whilst pedaling but I think that is a very small negative against the imperfections of chain tensioners. If you have a precision engineered freewheel combined with a laser cut aerospace grade aluminium chainring fitted to your bike and you are getting sufficient oscillation for you to consider a tensioner I would get your frame checked.
Apologies, I'm on the wine.

That there Moonmen Mension is a clever idea 😀

Clever isn't it.
Maybe one day........

Yeah, I daren't look at the price 😆

@ Spectabilis, what rims are those?

Those would be Dually's from Velocity

Semi skimmed km
[URL= http://i49.photobucket.com/albums/f278/firestarter4075/IMAG0304.jp g" target="_blank">http://i49.photobucket.com/albums/f278/firestarter4075/IMAG0304.jp g"/> [/IMG][/URL]

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My Travers Angus

not mine but was in my garage
[img] ?oh=62e8b3ff198e92f4de6eced432e37e5f&oe=54DEEC66[/img]
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^^ That looks fun Nasher 🙂 ^^

JohnClimber, how're you finding the Maxxis Chronicles?

They're an improvement over the Knards in the mud I think but i'm having trouble finding the tyre pressure sweet spot. The Knards are perfect for me at 10psi front and 12psi rear but the Chronicles feel strange cornering at that pressure, maybe squirmy but they don't feel like that when I squeeze them. I need to take the gauge out for a ride and do some testing I think.

Also, what frame & rims are they in the middle photo?

My Surly 1x1.
Front tyre is a Kenda Nevegal 2.35 which blows up to 58mm width on the Halo T2 rim, the rear is an older Michelin WildgripR 2.25 which measures 60mm. 18psi works for my ten and a half stones.

[img] [/img]

Mostly balanced,

How wide are the original forks on a Surly 1x1? Would a 26x3" tyre fit in there?

Paceman

Paceman. I'll have to measure the forks at home to give you an exact answer but gut feeling is yes, and I'm sure I've seen reports on the internet of 3 inch Knards working. As for other tyres more information is needed. Real tyre widths and manufacturers stated tyre widths are often very different.

Does anyone know if a 50mm 29+ rim with a 2.4 will fit in a Karate Monkey frame?

I need to re-build mine, and I'm thinking of going for Stans Hugo rims (when they come out - which will be about the time I can afford it), 3" up front, 2.4" out back.

(sorry, just seen the photo above of exactly what I needed to know!)

It will fit with Monkey nuts fitted but you will not have much mud clearance, here is a pic of a 2.5 Minion on a RH, swapped it for a 2.3...
[url= https://farm4.staticflickr.com/3933/15603462701_912406e232_c.jp g" target="_blank">https://farm4.staticflickr.com/3933/15603462701_912406e232_c.jp g"/> [/img][/url][url= https://flic.kr/p/pLPPQZ ]29 x 2.5 Minion`s 006[/url] by [url= https://www.flickr.com/people/33319577@N03/ ]coastkid71[/url], on Flickr

[url= https://farm6.staticflickr.com/5610/15420026398_d3083ac52d_c.jp g" target="_blank">https://farm6.staticflickr.com/5610/15420026398_d3083ac52d_c.jp g"/> [/img][/url][url= https://flic.kr/p/puBEC7 ]29 x 2.5 Minion`s 005[/url] by [url= https://www.flickr.com/people/33319577@N03/ ]coastkid71[/url], on Flickr

Here's my slightly modified Solaris with on one carbon forks which have 'just' enough room for a Knard on a Dually rim. I've a Chronicle on order and my fingers are crossed...!

[url= https://farm8.staticflickr.com/7544/15627528930_c3682a09bf.jp g" target="_blank">https://farm8.staticflickr.com/7544/15627528930_c3682a09bf.jp g"/> [/img][/url][url= https://flic.kr/p/pNXaTY ]29+ Solaris[/url] by [url= https://www.flickr.com/people/70653371@N05/ ]Rosscopeco[/url], on Flickr

Loving the way it handles.

Running a on one 2.4 chunky monkey on the rear.

To answer running a Rohloff on track ends...I got so fed up with the faff I got the rear dropouts replaced with Paragon swingers which makes it a cinch.

Now planning a full 29+ custom frame with a slightly more relaxed head angle to take some weight of the hands and make the front end more 'poppy'

rosscopeco - Member

Here's my slightly modified Solaris with on one carbon forks which have 'just' enough room for a Knard on a Dually rim. I've a Chronicle on order and my fingers are crossed...!

The Maxxis Chronicle is 2mm narrower than the Surly Knard on a 50mm rim so i'd expect you'll have no problems 😀 .

on one carbon forks which have 'just' enough room

To answer running a Rohloff on track ends...I got so fed up with the faff I got the rear dropouts replaced with Paragon swingers which makes it a cinch.

Now planning a full 29+ custom frame with a slightly more relaxed head angle to take some weight of the hands and make the front end more 'poppy

Singular Swift Half-fat:

[img] [/img]

Putting aerospace chainrings and precision freewheels aside, a quality hub needs to be fitted. I fitted my W.I. to a hub along with a new ring and found that the tight spot had nothing to do with the ring, freewheel ,bent axle or chainset. With the freewheel removed and the wheel in a jig, the threaded part appeared egg shaped. More than 1mm out in a revolution.

I've had a knard through the On One 29er monocoque on ones with about 5mm either side, but that was on a 25mm rim. I am building one up over the next couple of weeks with a 47mm chris holm, so we'll see how that works.

If On One already have a fork that takes 29+, my son has one in his 456C, what chance they will do a carbon 29+ frame? Anyone heard anything?

letmetalktomark

Have you tried a 50mm rim + 3" tyre on the back of the longitude yet? What's the tyre/mud clearance like?

Just took the Krampus out for a ride with it's new Alfine rear wheel. Why aren't we all riding IGHs? I am truly converted!
I did take a picture, but my phone is playing up.

Singlespeed Stooge Knard up-front

[img] ?1416743581312&1416743586198[/img]