650b+ (and other plus sizes if you like) – rim, tyre, frame, fork combinations,

That Sultan looks good, as it happens I have failed to sell mine ( asking too much most likely) now Im torn between selling or building it up

Just put the wheels on but not ridden. 3 inch nic up front, 2.8 in the rear, both on i35 rims; plenty of clearance. Looks like it should be a whole lotta fun…..

that looks like trouble.

Does anyone have an actual measurement for a 2.8 nobby nic on a wide rim like a scraper?

Pretty sure sstu measured it to be 72 or 73mm earlier in this thread. I don’t have any calipers to do it accurately on an i35. It also depends on where and how much the chainstays curve in as I find it gets tight at that point with the sidewall of the tyre…. if that makes sense.

Going to try back to back runs on a hardtail comparing the plus with 29er on Saturday. On the full sus it all felt a bit vague with the suspension and soft tyres, hoping it’s better with the hardtail which is what the wheels were bought for in the first place. That said my gut feeling is that for pure speed a 29er with proper rubber will be faster than the plus size.

Okeydokey, thanks for that 🙂

Does anyone have an actual measurement for a 2.8 nobby nic on a wide rim like a scraper?

Nobby Nic 2.8 by multispeedstu[/url], on Flickr
It grew a couple of mm after a couple of rides.

My 3.0 NN (just mounted to a Scraper) comes in at 79mm. As SSStu says, I expect it’ll grow by a couple of mm.

My 3.5 FatBNimbles are the same width 😆

Nobby Nic looks like a “proper” MTB tyre. Should be able to cope with the current slop levels better than the FBNs – though I’m just running it on the front at the moment.

Thanks again fellas

In the process of trying this on my mk1 Yelli, bought a i45 Scrapers wheel set, a 2.8 VeeTire Bulldozer for the rear and a Specialised Purgatory 3 for the front, (Pike 140 forks)

The Bulldozer only clears the chainstays with 20psi, it being tight on the LH, going to offset the rim to get it centre but even then reckon it’s going to be touch and go if I can actually ride it, not sure what to do if it don’t work so open to suggestions?

The Purgatory has yet to arrive from Evans ordered Tue! unlike Next Day Tyres for the Bulldozer ordered 3pm Tue and in my hands 9am Wed morning.

As per earlier posts in the thread, 3.0 purgatory’s on 45mm scrapers wont work in standard pikes. In the stand they will just roll, but when on the trails and turning they do rub. 2.8NN’s are perfect for pikes as you can also fit a mucky nutz which really does stop the sh*t flying up into your face.

Thats odd, i’ve been running mine for weeks with zero issues

To clarify I mean 29er rct3 pikes

Any pics of the clearance with that setup bigh?

Update Yelli mk 1

Wheel now tweaked so it sits central, still not much chainstay clearence but at least the tyre doesnt rub any more 🙂 Tubeless milk added (not keeping pressure) and a quick spin down the road and all seams fine, will be waiting on the front tyre before a proper ride.

Ive ridden with ‘bigh’ and his setup with the Purgatory 3 on the front with a Pike RCT3 does work with no mudguard which is why I ordered one.

Wheel now tweaked so it sits central, still not much chainstay clearence but at least the tyre doesnt rub any more

At least until it stretches overnight?

It’s not easy taking a photo to give an idea of clearance is it, I reckon theres 4-5mm. I have ridden it a hell of a lot, through the worst conditions possible. At no point did they rub or deposit large amounts of mud onto the forks. I’ve been very pleased with them quite honestly. I have a rrp thingy and a crudcatcher which seem to be keeping me fairly clean.

[/url]DSC_0168 by bighpr[/url], on Flickr[/img]
[/url]DSC_0170 by bighpr[/url], on Flickr[/img]

That’s the sort of clearance I had at the back of my lurcher and it was definitely ‘polishing’ the frame but I guess a back wheel has more load on it.

Bigh – what pressure are you running though? I guess there could be variance in the tyres as the one I got from specialized had slightly less clearance and @ 10psi it rubbed on one side in tight fairly high speed turns and berms.

Im running 45mm scraper rims on 29er RCT3 pike just to clarify

Had the wheel redished a couple of times as the clearance side 2 side wasnt even, but gave up and now run a 2.8NN which is just as good but with more clearance of course.

Ive found with the scrapers the sweet spot for pressures generally with 2.8 and 3.0 tyres is 10 PSI as it provides a great balance of grip without noticeable side to side roll.

15 ish in front, im 15 stone with kit so i’m reluctant to go much lower

Slightly OT but I Impulse bought a 27.5+ Hardtail yesterday. Took it for a quick spin today and loving it. Only problem is in the current conditions the spray from the front wheel. The issue is it’s got a lefty- anyone got any ideas of any mudguards that will fit? Also how are people finding the nobby nics. I’ve got WTB bridgers on i45 rims. The grip seemed pretty good when I dropped the pressure to around 10 psi but the nics look like they’ve got a pretty aggressive tread. Thanks

I reckon you could fit a mud hugger – they’re fairly stiff so they’d probably cope with being mounted on one side if you fix it firmly enough that it doesn’t spin round the leg

Or one of those rubbish looking but very effective SKS shock boards that fit to the head tube

http://m.evanscycles.com/products/sks/shockboard-front-mudguard-ec004907

Currently running 3 inch Nobby Nic’s on Halo’s truly excellent 35mm Vapor wheels on my Turner Sultan with a Fox 34 up front. Plenty of clearance front and rear. The Nobby Nic’s look massive and dwarf the 2.35 Hans Damff 29er tyres I had fitted previously. They are a very different beast from the 29 Nobby Nics.

Update 2 Yelli Mk1

So the Purgatory 3.0 turned up today, got it fitted but it wasnt well seated first time and had a wobble which meant it rubbed so it had to come off spend a bit of time in the warm and be remounted, ok this time. It spins ok in the Pike Forks although not a huge amount of clearence, anyway in went the sealent and we shall see if it ‘grows’ overnight!

Rear wheel/tyre still spins without contact 🙂

Bit of a rubish picture but best I can do for now, needs riding to see if its all a bit too close….

Question for folks on 2.8 Nics – am about to order rims, torn between 30mm or 40mm rims. 30mm are 100g lighter – which is a fair chunk on the outside of the wheel.

What are you using/recommending?

I use 2.8 NN on… 35 mm rims 😀 sorry it doesn’t help!
They are now exactly 70 mm wide. I’m sure that 30 mm rims would be no problem, but tire would be maybe 68 mm wide.

Question for folks on 2.8 Nics – am about to order rims, torn between 30mm or 40mm rims. 30mm are 100g lighter – which is a fair chunk on the outside of the wheel.

I think the general consensus is go the widest rim you can to ensure you can use the lower pressures without tyre roll.

I have a pair of i45 and p35 to build, was planning to do the p35 for the 29er and the i45 for the Fatbike, but think ill put the i45’s as fronts with 35mm for the rears. Should be best of both worlds for each bike.

So im on a gen 2 yelli as well. Just picked up a set of hubs but still debating rim width due to potential clearance issues in the rear. Like the option of the wtb breakout 2.5 on an i45, but want to max the cush and have doubts about a 2.8 clearing the rear reliably on the i45. Any thoughts about a 2.8 on a velocity dually? Internal width 39mm(lil bigger than the i35 yet smaller than the i45). Really want a rekon+, but hate to wait to build these up til they arrive.

2.8 NNs here, 45mm front rim and 30 rear. The rear feels great, though I’m not a fan of low pressure – run at around 20 psi I reckon. At lower pressure, the rim (Easton Arc burps and leaks sealant. If weight concerns you go 30mm, if not 40mm.

though I’m not a fan of low pressure

I’m not really understanding why you want to run + tyres.

Boxelder, are on a yelli as well? For me the lower pressure and added volume is the point. Weight is no issue. Wouldnt even be looking at this setup if it was. My purpose is to get more tire suspension safety margin in the rear of the bike without so i am destroying my rim and back in the rough. The added grip is a bonus.

Few pages on, (& a few months use), from my last post but just to add; the 45mm Dually rims work really well. Pressure wise I’m at about 18 psi rear (2.8″ Trailblaster), 16 psi front (3″ Knard). Rolling resistance isn’t an issue I’ve noticed, but what I have noticed is a ride that’s almost sublime.
The Knard/TB combo isn’t the most grippy, but I’ve no complaints. Really happy with mine now. I’d no go back to “normal” tyres again.

I’m not really understanding why you want to run + tyres.

..because I like tyres at least as wide as 2.4″ 29ers I was using, that I can run at pressures which give lots of cushioning and traction, without whacking rims on the frequent rocky trails round here. + tyres at around 20psi give me that.
I like lower pressure, but I don’t need to go 13/15 like many do. For me that risks knackered rims on steep rocky descents.

Boxelder, are on a yelli as well?

Solaris

the 45mm Dually rims work really well.

Agreed – no ‘squirmy’ feel on that, even when burping tyre meant very low pressure. Too wide for the rear of a Solaris though and I want to be able to run a WTB TB on the rear without it having a really square/flat proile.

I’ve been playing around with a Nobby Nic 3.0 on a Scraper and at 20 psi it’s just way too firm for a rigid front end. I’ve a set of Rebas to try too mind so haven’t come to any final conclusions yet

Update 3 Yelli Mk1

Managed to fnaly get out and ride the Yelli today, it might not have been raining but the FOD conditons were plenty of mud. Tyres were at 15psi Specialised Purgatory 3.0 on the front and a Vee Buldozer 2.8 on the back all spining nice and free in the frame.

Out on the fire road and all was good, bit sticky but only to be expected given the conditions and couldnt detect any rubbing, happy days 🙂

First section of singletrack in the mud and was sliding about, but to be fair it was minging, however could now detect the occasional buz as the tyre intermitantly rubbed the frame, didnt seem too bad and quickly forgot about it as we moved onto firmer trails.

Took me a little while to get used to the different levels of grip but just loved it on the green lanes and firmer single track, one of which was basically a running stream. Big grin its so much fun, however every time I got more speed up I sensed that the tyres were rubbing. Wasnt going to worry about it though….. well not until I got home..

Post ride and as you can see its looking a bit yuk…

After washing it off at home time to take the wheels out and inspect the chainstays..

Thats the result of 19km in the FOD, granted conditions under were not ideal but clearly theres quite a bit of rubbing going on, I reckon when its dry and dusty speeds will be higher and the sideway loads greater and well the rubbing is not going to go away.

Gutted really but im not going to continue and spoil my Yelli frame, I could put a narrower 2.5 tyre on but that sort of defeats the object and in turn will lower the bottom bracket more.

So its going back to being a proper 29er and one of my good riding buddies is hovering vulture like for the wheels! 🙂 Has been a great experiment and I reckon if it had been a Yelli Mk2 which I gather has slightly more room in the chainstays then it would have been a result.

Right. Plus it is.

Pro 4 hubs, XM551 rims and 2.8 NN Trailstar/Pacestar combo ordered.

Alpkit 650b plus wheels now available in normal…

Love Mud Rumpus 650b+ 100/142 MTB Wheelset

…and boost

Love Mud Rumpus 650b+ Boost MTB Wheelset

Although cheap that’s a 2.5kg wheelset!!

Wonder if you could drill the rims out?

Spotted Evans have 3″ rocket rons in stock. Anyone measured one of those yet?