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27.5+ Frame Compatibility Thread. Post your setup!

395K views 1K replies 292 participants last post by  chaser80  
#1 · (Edited)
Hey Everyone!

What I would like to accomplish by this thread is a central place for guys and gals to post what rim and B+ tire options they are running on their standard 29er bikes.

I know there is a lot of pics and posts out there concerning B+ platform compatibility, so lets get it all in one place.

Please include pics of your setup.

I will start off.

I have successfully run the 650b Velocity Blunt 35 rims with TrailBlazer 2.8 tires on my Kona Process 111.





WTB Scraper i45 rim with the TrailBlazer 2.8 tires on my Canfield Yelli Screamy.







This one with a Fox 36



Santa Cruz Heckler set up B+. WTB Breakout 2.5's on WTB Scraper i45 rims





Canfield Brothers Riot will clear 2.8's on i45 rims





Most recently 2016 Canfield Nimble 9 with Schwalbe Nobby Nic 2.8's on Atomik Carbon Chubby 43 rims. These are i36





Please post your setups! If you can include measurements and clearance pictures, it would be even better :)
 
#316 ·
IMO I wouldn't call the Trailblazer a great tire. It's a great compromise and I think it's awesome that WTB had the cojones to design, build and bring something like this to market. I also think it would be a decent tire for gravel road bikepacking adventures. It's small tightly spaced knobs, centre line and hyper square profile limits it's use in technical variable condition trail or all mountain type riding. For everyday riding on the full suspension I'd pick a more aggressive tire from their line up for sure.


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#324 ·
It's interesting to read everyone's opinon on the difference between normal and + tires. Not sure if I even qualify with all the hoopla surrounding the WTB trailblazers, but I went from a Bontrager XR4 expert 2.35 front and XR3 expert 2.20 rear to these, and I noticed a difference for sure both in size and performance, mainly the ability to claw my up loose over hardpack, and increased roll over. Not sure if the roll over is due to the larger size or the lower pressures though. All I know is, I like 'em, and haven't had any issues cornering with them either.

Image
 
#328 ·
I don't have much experience or knowledge about working on bikes, but I'm quickly learning. With that said, in order to do a conversion all I need is: rims, spokes, and tires? I could swap the hubs and other stuff over to the wider rims? Anything I need to look out for? I'm getting anxious and ready to start moving on this and I don't want to make a big $$$ mistake.
 
#334 ·
It's been done. Enduro Mag did a test of 27.5x3.0 pre-production Purgatory in an Enduro 29.

Regular Enduro 275? That might be tight, but who knows, those bikes share a lot of parts.
Yeah, that Enduro Mag article is the one I referenced. My guess is that it was a stock Enduro 29 since the production 6Fattie is a Stumpjumper and not an Enduro. But that's just my guess.
 
#333 ·
It's been done. Enduro Mag did a test of 27.5x3.0 pre-production Purgatory in an Enduro 29.

Regular Enduro 275? That might be tight, but who knows, those bikes share a lot of parts.
 
#335 ·
The Enduro 29er have enough space for a 2.8" x 27.50" tyre, maybe a 3". 80mm between stays is ok for a tyre around 72-74mm width.

One guy that sometime ride with me is using a regular Enduro Sworks 29er with the wheels of the Enduro 650B and Ground Control 6fattie tires with no problem. Can change wheels with normal 29er, depending on the trail he want ride. GC 3" with that 29mm internal is 73mm tread width.

 
#336 ·
Frame/fork specific question

I did go do a search first and can't believe the amount of interest generated in the + size tires. And this coming from an early convert to the 650b movement!!

Anyway my direct inquirey is if anyone has tried WTB TB 27.5"+ setup on a non-split pivot Salsa Spearfish? I did see 1 inquirey on one and another for a Horsethief but no actual builds. And what are the chances of a Reba fitting them aswell?

Thanks in advance.
 
#337 ·
JMac,

Check out the and this one.

Unfortunately I haven't found a first generation Spearfish with B+ yet, but its apparent that the Trailblazer/35mm rim combo will fit the rear triangle just fine on a Split Pivot version.

Also check out this facebook group where we've got a good discussion going about the Spearfish: https://www.facebook.com/groups/29plus/?fref=nf
 
#339 ·
My Kona Raijin (19") fits WTB Bridger 3.0's on ASYM i35 rims with the dropouts slid back a bit. My fork (SID XX) on the other hand only has almost no clearance with the 3.0...It looks like I need to scale back to a Trailblazer.