The first time I heard of a 79er was in a 2010 Steve Worland WMB article about his custom-built rigid Pacenti. He tried lots of experiments and really liked the combo of Pacenti 650b rear wheel and a 29er at the front. The sizes are close enough that you only need to carry one size of inner tube for emergenices. 😀
I tried that set up and it appeared to be the best of both worlds. 27.5+ rear for comfort and climbing traction, 29" front just felt more lively and better grip.
Bit more information to add to this thread, potentially save someone else the trouble of discovery...
2.8" Nobby Nic on WTB i45 will fit and spin in a Stanton Sherpa but mud or out of true rims are definitely going to cause rub on the stays, not recommended.
Same tyre and rim combination will fit in an X fusion trace and has clearance around the tyre tread but the side walls run very close to the fork bulge; there's maybe 2mm per side at 15psi, they almost rub at 30psi! Since low pressures are one of the alleged advantages of B+ I'm going to say this is a goer.
Now off to get a Trailblazer for the rear unless the Rocket Ron 2.8" is in shops yet...
I don't see your logic Sam.
More volume/height is what allows lower pressure (and comfort).
At the same time the contact patch gets bigger giving you more grip.
It's not the width of the tyre that determines this.
OK, so what's the chance of a Nobby Nic 2.8 working in a 2012 Revelation 29er fork? From the comments above it looks as though it might be too tight, but not sure.
What width rim? It'll probably be ok on a medium with rim (say 25-30mm internal)
I've got a 2.8NN in that era revelation on an i35. It fits fine, and is a good tyre.
STATO - Member
Lots of 3" tyres in the shops now, struggling to find any 2.8" for sale beyond the TrailBlazer. Specifically looking for 2.8 Schwalbes.
Mine should arrive tomorrow from bike-components.de
Perfect. Thanks nemesis @ ianpv. They'd be going onto some WTB Asym 35 rims on my Mk1 Solaris (Asym 29 on the rear). I think I might try a NN Pacestar (rear) and Trailstar (front) combo.
Mine should arrive tomorrow from bike-components.de
Cheers, they were out last time i looked. Still no 2.8 Ron's in the shops yet tho.
@ STATO /www.greyville.com/products/12168-ty1783z-schwalbe-rocket-ron-tyre-275-x-280-liteskin-folding
Cheers.
Just spotted that [url= http://nextdaytyres.co.uk/search.aspx?search=27.5%2b ]Nextdaytyres [/url]now list Schwalbe 27.5+ tyres. Tho RR are only in liteskin at the moment.
Specifically looking for 2.8 Schwalbes.
I have some NN 2.8s that I am playing with right now. Good tyres (never thought I would use the word Good in conjunction with Nobby Nics). Size wise though they aren't really a + tyre (what is?). They come up around 28.1" tall, which is about where 27.5 would be if naming conventions were actually followed and you wanted a 27.5 wheel to actually split the difference between a 26 & 29er....
Size wise though they aren't really a + tyre (what is?). They come up around 28.1" tall, which is about where 27.5 would be if naming conventions were actually followed and you wanted a 27.5 wheel to actually split the difference between a 26 & 29er....
Yeah ill likely only be using the 2.8 on the rear of my 'enduro' bike. That height loss would be ok for both on the hardtail (Salsa El-Mar), as the BB is quite high anyway, but not sure it would fit in the frame just yet.
STATO - MemberCheers, they were out last time i looked. Still no 2.8 Ron's in the shops yet tho.
Got a set here on my desk right now.
Rons in stock here
NN's are 2-7 days (but when Bike Components say that, they actually mean it, they do arrive just a few days slower)
Hmmm...
It's very tempting to have a go at B+ on the spectral 29er. Looks like a NN 2.8 will be fine on the front (pikes) anyone any idea if the rear is okay?.
In my experience it depends on how much the stays 's' for clearance which seems to more of an issue with hardtails than full suss. There's tyre measurements for a nic ( think it's c. 70mm) in this thread, use that to measure across the stays where the top of a 29er rim would be to get an idea as that'll be roughly where the fat part of the plus tyre sidewall is.
Honourablegeorge, do you measure real weight of this new DT rims? And how it works tubeless, it looks like "hookless" rims inside.
Serg... no, I just dropped them to the LBS to be built up.... didn't weigh ghem
Thanks for the link to NextDayTyres. A nice easy web site to navigate and the tyres I ordered on Monday did indeed turn up yesterday. I went with Nobby Nic 2.8 in the pacestar (rear) trailstar (front) combo to go on my Mk1 Solaris with 2012 Dual Air Rev forks. I'm using wheels (provided by Cotic) with WTB Asym rims (i29 rear and i35 front).
Setting the tyres up tubeless on these rims was fairly straightforward. They went up with just a track pump and a bit of washing up liquid. The hardest bit was getting the tyre off the bead seat. I put a tube in to seat the tyre, puped it up so that the bead popped onto the seat, then found it really tough to push it back off the seat again to get the tube out. I guess that should help prevent it burping not it's on though.
In terms of size the nobby nics come up a touch wider than the trailblazers I had before. I had to remove my Mucky Nutz guard from the front and use a neoguard instead. Clearance was tight with the TBs and the Mucky Nutz anyway, but I could just make it work. Clearance without the guard looks OK with the NN though.
Not had a chance to ride it yet, but looking forward to having a bit of grip in the slop!
I've had a couple of rides on the Solaris with the 2.8 Nobby Nics now; one rather greasy/muddy night ride and one in the snow at the weekend.
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I'd agree with the comments from one of the other threads that the 2.8 NN is basically just a high volume version of the trail tyre that we all know. I understand that the 3.0 version is on a different (lighter) carcass, but the 2.8 is just a bigger version of the standard tyre. If (like me) you find that Nics tend to suit where and how you ride quite well, you'll probably like the 2.8 version. If (like some people) you hate them I wouldn't bother with the chubby version.
Compared with the Trailblazers that I was running before, you get the same float (at the same pressures) but with much more grip and traction in slippery conditions. Of course, grip, traction and drag are all related so I'd assume that these will be slower than the TBs but I've not managed to test that yet as riding in mud and snow traction trumps drag every time.
Mk 1 Yelli, 2.8Nic on WTB i35, no go - tyre deformation is enough to rub, it's not on the whole spin, about 25% of it.
Any suggestions other than put a Trailblazer on (which will clear I know)?
Update to above: I took the Nic off and put a Trailblazer on, it gives a couple of mm of clearance each side. I rode 30km of Leith Hill slop last night, it worked well, no clearance issues at all,l though I'm glad I still had the Nic on the front. The TB is fine on the back.
I'm sold on the format, it's enough to take the sting out of a pretty stiff frame especially on roots and rubble. Good times.
I'd be interested in what a dedicated b+ frame would ride like with a bigger tyre, tho I also love I can put my 29 wheels back on the Yelli if I want. (Not sure I ever will though).
^ I said the same, but it's just so more lively/jumpy/poppy on the lighter 29" wheels.
Found these yesterday for anybody after a cheap wheelset (£199.00!).....
https://www.alpkit.com/products/love-mud-rumpus-boost-wheelset
I had another go in the snow using the Nobby Nic 2.8s on my Solaris. As I was climbing a bit of a hill I noticed some tyre tracks from another rider. What struck me was how much they seemed to be moving the front wheel (presumably to keep balance on the climb). Obviously you can't read too much into the tracks of some random person you've never met, but it was interesting how much straighter my track was with the chubby tyres, which just seemed to trundle up the hill without much fuss.
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I pick up my new wheels tomoro, 2.8NN's fitted tubeless that night, and first #FullSussBeePlus ride soon after. 😀
Specialized Purgatorys fitted with WTB Asym based wheels to my Trek Sawyer.
Looking very chunky.
Pics to follow.
And measurements, please 🙂
Yep, measurements more important than pics! 😆
Considering I35s with spesh 3" tyre so measurements very useful, and pics. Think I'm going boost on the front as build requires new fork anyway.
I reckon I can get 650B+ in the back of my Shand (Mrs). I think I have a 29er rim I can cut down.
Is 45 the going rate for a 3 inch tyre worth buying? anyone got one to sell?
2.8 Schwalbe Nobby Nic does NOT fit in a Manitou Tower Pro fork, even with a measly SS DS25 rim. It's more down to the Manitou 'power bulge'. Pity as the rear of my 2013 steel Charge Cooker has plenty of clearance. Gonna leave the rear in and put my 29 2.4 Chunky Monkey back on front. A 1 deg works component headset is currently winging its way to my house!
Just put a nn2.8 and tb 2.8 on 27.7 external dt swiss rims into a new 29er camber evo and I've got so much room I could of gone straight to 3.0 's. As I'm using a fairly narrow rim would going to say a 34mm external rim widen out the tyres noticeably or would it be a waste of money on new wheels?thanks.
Well, 2.8NN on i35 is just too big for spectral 29er, unfortunately. Wads of room on the Pike though, so I'll just need to run a 2.5 on the rear.
First proper ride last night, so much grip on the rooty singletrack coming off the moor, 15psi in the front, reckon I could probably lose a few psi tbh.
slightly the wrong way round, but anyone running "normal" tyres on "plus" rims?
Thinking of getting a Norco Torrent, but from what I've heard, narrower tyres might be better for the real winter filth (by narrower, I mean 2.25 Magic Marys, or 2.5 Minion!)
Quite a few of my mates run standard tyres on their wide rims - mainly IBIS. They seem to like them.
Well, 2.8NN on i35 is just too big for spectral 29er, unfortunately. Wads of room on the Pike though, so I'll just need to run a 2.5 on the rear.
Tried a Trailblazer? It comes up around 5mm narrower than the 2.8 Nic.
As a guide, a 2.8 Nic rubs (very gently, but persistently) on one chainstay of my Yelli, a TB clears with 2-3mm each side. I've ridden the TB through all kinds of slop and crap, the clearance is enough, no problem at all. I'm on an i35 rim.
I've ordered a 2.5" WTB Breakout Matt, came this morning, but I'll bear that in mind thanks.
After easily fitting the TB on Dt Swiss 535 rims on my camber evo 29er I tried on my Shan 917. Too tight at the back which I pretty much guessed at. Then I put them on my 2souls slim jim and they fitted with room to spare with a Dt Swiss 29er fork. I might even go 3.0 on the front but tight on the back.
So ive finally found a set of tyres im happy with .Had some pretty horrible muddy wet weather down here in cornwall and the 3.0 NN and RR in my bigwig have coped just fine which means there's a 2.8 NN and a trimmed down ground control from my experiments with the codeine in the classifieds if anyone is looking for one.
So what tyre/rim size is going on the codeine then? Its a possible frame for plus build so curious.
Turned it back in to a 29er the only tyres that had any sort of resonable clearance were trailblazers on a 25mm id rim but dont think they are really suitable for British weather i.e wet !! Also I thought plus tyres on a mid travel full susser was a bit overkill really unless your always riding very rough trails . I had a go on a mondraker crafty plus at the weekend and was left with the same impression. In my opinion they are far better suited to a nice hardtail like my bigwig
Ah ill cross it off the list then.
are you running the recommended 170mm cranks on the B+ bigwig?
