Home › Forums › Bike Forum › 650b+ (and other plus sizes if you like) – rim, tyre, frame, fork combinations,
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650b+ (and other plus sizes if you like) – rim, tyre, frame, fork combinations,
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letmetalktomarkFull Member
My 3” NN measures 78mm on my Hugo rims
Its far to big for any of my suspension forks and certainly won’t fit in the rear of my frame.
Currently in a rigid fork!
mattjgFree MemberReading the above it seems my 2.8NN on i35 isn’t going to fly in my My 1 Yelli. I’ve not ridden it yet but it spins freely at setup.
Rats.
I shall report back!
dmortsFull MemberHad an email about this today – On-One Parkwood 27.5+.
Appears to be only available as a full bike but I’m sure a frame only option will followEDIT: Appears it might just be a 29″ Parkwood frame with no additional clearance in the rear stays 🙁
davidxbrownFree MemberHas anyone successfully got a 45mm Scraper rim and tyre combo to work on a MK1 Yelli?
Before I sell on my Scraper wheelset I might give it one last try and was thinking of trying a WTB Breakout 2.5 tyre but it would be great to have confirmation before buying one.
Cheers
STATOFree MemberIts been in an email previously dmorts, just before crimbo i think. Its just the 29er frame with 27.5×2.8 trailblazers. I bought a set of the wheels on the xmas deal they did.
cvman33Free MemberWtb trailblazers and i45s have been used reliably in a mk1 yelli. 2.5 breakouts should not be a problem either.
cvman33Free Memberhttp://forums.mtbr.com/canfield/yelli-screamy-photo-thread-756696-19.html
Check this guy out. It should answer questions on the mk1 i45 issue.
davidxbrownFree MemberThanks for the pointer cvman
cvman33 – Member
Wtb trailblazers and i45s have been used reliably in a mk1 yelli. 2.5 breakouts should not be a problem either.
http://forums.mtbr.com/canfield/yelli-screamy-photo-thread-756696-19.htmlFor the 2.8 WTB Trailblazers tyre to work it must come up smaller than other manufacturer offerings, I tried to use a Vee Buldozer 2.8 which clears until you ride, I’m sure I have read that the ‘Trailblazers’ are not too good in mud? and have absolutely no idea about the Breakouts..
I had got to a point of abandoning the project and had a mate after the wheelset with tyres which would have closed it off, but he’s now doing something else so I’m just further reviewing.
It’s almost trying to do it for the sake of it but then again a semi fat Yelli is a heap of grin to ride! but im reluctant to throw much more money at it.nemesisFree MemberThe trail blazer knobs don’t stick out much sideways so they clear frames well for their carcass size – eg they work fine in my Reba but if I fit my purgatory they don’t clear even though the carcass is near enough the same size.
In deep mud, on the front, the tb is rubbish. I’ve found it OK on the back though
mattjgFree MemberSide issue: it’s gratifying to see all the Yelli on here! My fave frame.
faustusFull MemberI’ve have a mate who has been using a 27.5 x 2.5 Breakout on the rear of his Stooge with superstar 25mm internal rims. Apparently a very good grippy tyre for all conditions, but not the greatest at clearing mud if’s sticky (not a problem at the moment 🙁 ). Comes up pretty big and still room in the frame, close enough to b+ to be worth it and still work in the mud is the essence of it.
singlespeedstuFull Memberdavidxbrown
I’ll give you my take on your rim/tyre/frame combo.
All tried on a MK2 Yelli.(so a tad more room)
i45 with 2.8TB worked ok until it got muddy. Then I personaly found there wasn’t enough clearance and it jammed up with mud/ didn’t grip very well.
Swapped the i45 rim for an i35 to get more clearance.
So far on the i35 i’ve had a 2.8NN great tyre but buzzed the chainstays a very small amount on hard cornering.
2.8 TB witch I’ve cut the center knobs on to allow it to dig in a bit more. That seems ok in all but real crappy/sticky mud.
2.5 Breakout great clearance and works well in the mud but not quite tall enough for my liking.So for now I’m just switching between the TB and Breakout depending where i’m riding until my proper B+ bike turns up.
Though I may also trim the outer edges on the NN so it doesn’t rub under hard cornering.SamFull MemberThe benefits of B+ are IMO twofold:
1. More volume gives better cushioning
2. More rubber on the ground gives better tractionThe 2.8 WTB’s win on the first count, not so much on the second. The width of the tread is no more than a regular 2.4″ tyre (this was intentional so that it would fit most any 29″ frame) so you don’t really have any more rubber on the ground other than that you might gain from running lower pressure thanks to the higher volume and use of a wide rim.
A 2.5 doesn’t really cover either base of significantly more volume or rubber on the ground. Not saying that means they can’t be a great tyre, just that you can’t really put them in the same bracket as true plus size >2.8 tyres.
That said, with the proliferation of new >2.3 tyres on the market at pretty much every increment all the way through to 5.0 it can only mean more choice for riders and everyone has a better chance of finding the tyre which is right for them!
singlespeedstuFull MemberA 2.5 doesn’t really cover either base of significantly more volume or rubber on the ground.
The 2.5 Breakout is as wide as the TB but the tread goes all the way to the edge. It’s not quite as tall but does put more rubber on the ground.
mattjgFree MemberWhat frame are you getting Stu?
re Sam’s note, the big win for me was, lower pressure as a consequence of the higher volume. It made my hardtail a ‘softail’.
davidxbrownFree MemberThanks for the input Singlespeedstu, I reckon you have basically confirmed my thinking after the weekend ride, the Yelli MK1 frame is just a bit too tight on the chainstays unless you are prepared to accept rubbing or compromise with a smaller tyre.
The Yelli is a great bike and it makes me smile all day long as a 29er so I’m out for the time being on 27.5+
So who wants to buy some one ride old WTB Scrapers with tyres?
mattjgFree Member@david since you have the wheels it sounds to me like a case for n+1.
TimCoticFree MemberJust bookmarking thread for when my new bits are built-up and ready to show you. 😉
STATOFree MemberLots of 3″ tyres in the shops now, struggling to find any 2.8″ for sale beyond the TrailBlazer. Specifically looking for 2.8 Schwalbes.
TimCoticFree MemberI’ve been reading the stuff on the Cotic website by Cy Turner and Paul Dexter (very experienced knowledgable guys) about the Solaris 2 development history. My rigid legacy Salsa frame is a lot narrower than their Solaris 2, so I’m going real conservative to start off with.
My Salsa is currently setup 2.25 Nobby Nic rear and 2.35 Hans Dampf front on 29er Arch rims: – I run at about 27psi/23-22psi. I really like the rigid experience, but I want just a bit more capability and cush for faster, rattly stuff (did some trails at Rivington Pike, Lancs on New Year’s Day for example), whilst still keeping the whole setup really light and fast-rolling. My riding is slower and my trails less radical & hardcore than what the Cotic crew do, so I hope to learn from them, but adopt a lighter, slightly scaled-down (‘Skinny-Chubby’) solution more suited to me. Well that’s the theory! 😀
I’m going try a ’79er’ setup!
I’ve ordered Easton Arc rims: (lighter weight than Aysms but not too expensive). I’ve ordered a 650b, 27mm width rear and 29er, 30mm width front. I really like the Hans Dampf, so to start off, I’m gonna stick with my current HD 29er front tyre and I’ve bought a new 2.35 HD (27.5 version for the rear). I reckon those tyres will come up w-a-y bigger than my current setup and I’ll be able to drop pressure lots if I want to. I’ve not done the calculations but I don’t think I’ll be adding much weight.
alexhFree MemberIn some cases I found b+ had less grip.
In the current conditions the wider tyres do not cut into the slop like a narrower 29″ will. They do not float like a full fat bike.
I wanted my b+ to work for winter, but I found the 29″ was better on everything bar comfort (hard tail yelli).
I’ll investigate again in the summer.
TimCoticFree MemberCheers – Interesting. I find the rear 29er Nobby Nic @ current pressure will loose grip and spin out on some steep slippy bits. I really like the HD front (better grip and still rolls well) but a 29er version won’t go in the rear end of my frame. Best I can so is experiment.
faustusFull MemberInteresting, i’ve been pondering a 7+9er too. No interest in getting a new frame and fork to give full b+ clearance, and very happy with current 29er frame. So, thinking that a 30-35mm rear rim and 2.8 will give some grip and extra cush (for hardtail), and wider 29 rim at the front with whatever choice of 29er front tyre. The wheels would remain fairly light (compared with big 45mm rims) and cheapish. It’ll also slightly slacken the bike, with trade off being a little bit of BB drop. Reckon it would make a swift, soft, grippy rear, and a nice big rolling, grippy front without too much weight added.
From other’s experience it sound like a normal 29 rear is better in winter, so option to swap back whenever needed. Not sure if it’s worth the bit of faff and cost though…
TimCoticFree MemberThe 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. 😀
alexhFree MemberI 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.
this_wreckageFree MemberBit 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…
cynic-alFree MemberI 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.
roverpigFull MemberOK, 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.
nemesisFree MemberWhat width rim? It’ll probably be ok on a medium with rim (say 25-30mm internal)
ianpvFree MemberI’ve got a 2.8NN in that era revelation on an i35. It fits fine, and is a good tyre.
honourablegeorgeFull MemberSTATO – 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
roverpigFull MemberPerfect. 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.
STATOFree MemberMine 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.
ryu1720Free Member@ STATO /www.greyville.com/products/12168-ty1783z-schwalbe-rocket-ron-tyre-275-x-280-liteskin-folding
STATOFree MemberCheers.
Just spotted that Nextdaytyres now list Schwalbe 27.5+ tyres. Tho RR are only in liteskin at the moment.
benpinnickFull MemberSpecifically 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….
STATOFree MemberSize 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.
honourablegeorgeFull MemberSTATO – Member
Cheers, 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)
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