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27.5+ Frame Compatibility Thread. Post your setup!

394K 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 :)
 
#4 ·
Jones

I have a Jones Tai Ti Spaceframe that I am experimenting with 27.5+(fork is an older 100mm spaced truss fork). I built up a set of wheels using Derby 40mm wide(outside) rims. First tires I tried were the WTB Trailblazers, and they fit the frame and fork with room to spare.




I did not ride the bike like this, as I think the tires are too small and lowered the bottom bracket too much. I then got my hands on a set of Vee Trax Fatty 3.25 tires and mounted them up. The front fit fine in the 100mm truss fork(and would fit with even more clearance in a newer 135 spaced truss fork), but the Trax Fatty on a Derby rim did not fit in the rear, bummer!



So now I await the Panaracer Fat B Nimble 27.5+, which should fall somewhere between the 2 width wise. I will update when I get my hands on one.
 
#5 ·
I have a Jones Tai Ti Spaceframe that I am experimenting with 27.5+(fork is an older 100mm spaced truss fork). I built up a set of wheels using Derby 40mm wide(outside) rims. First tires I tried were the WTB Trailblazers, and they fit the frame and fork with room to spare.

View attachment 971886
View attachment 971887

I did not ride the bike like this, as I think the tires are too small and lowered the bottom bracket too much. I then got my hands on a set of Vee Trax Fatty 3.25 tires and mounted them up. The front fit fine in the 100mm truss fork(and would fit with even more clearance in a newer 135 spaced truss fork), but the Trax Fatty on a Derby rim did not fit in the rear, bummer!

View attachment 971891

So now I await the Panaracer Fat B Nimble 27.5+, which should fall somewhere between the 2 width wise. I will update when I get my hands on one.
What is your BB height at Normally and with the Trail Blazers?
 
#10 ·
I'll chime in:

2012 Tallboy AL clears fine with a Freq i25 and a WTB 2.8. I'm sure it would work fine with a Blunt35 and maybe even a Dually (don't have one to check). The 2012 TB has the most clearance of the 4 bikes I've tried.



2012 Kona Satori clears fine with a Blunt35 and a WTB 2.8... A Dually would probably be pushing it.



2013 Diamondback Mason clears fine with a WTB 2.8 on a Blunt35. Would probably just fit on a Dually.



2012 Transition TransAM would clear a WTB 2.8 on a Dually. A WTB 2.8 on an i45 Scraper is pushing the limits of mud/tire clearance. (Sorry, no pics.)
 
#13 ·
I'll chime in:

2012 Tallboy AL clears fine with a Freq i25 and a WTB 2.8. I'm sure it would work fine with a Blunt35 and maybe even a Dually (don't have one to check). The 2012 TB has the most clearance of the 4 bikes I've tried.
Thanks for the info. I'm thinking I want a SS 29er with 27.5+ wheels. Any idea if a 45mm or 39mm ID rim with 2.8's fit in a SC Highball? Is the overall diameter of a 27.5+ tire ever a factor in a 29er frame or is it just the width that causes issues?
 
#17 ·
Trax Fatty and Scraper I45 rims on my custom titanium frame. Space on the Pike is very little but no problem for now. :)
Ride is very FUNtastic ! :eek: Amazing cornering grip and ROLLS OVER !!!

View attachment 972271
Can you get some clearance shots of the Pike for us? Nice looking ride :)
 
#36 ·
I don't have my 29er on hand right now, but that measurement isn't making sense this early morning. That would be 13 inches from the axle.. Wouldn't that be 26" rim? I'm going to be measuring later on.. Is there a chart with tire height to ensure the tire clears the chainstay cross member as well?

Shm

EDIT: just measured a dually 29" I haven't had laced yet, diameter of 25". Should have thought before posting, but hey, I'm awake now! Still trying to think this through for a 29 specialized camber comp for B+ though..
 
#37 ·
Re: El Mariachi

I just put the Trailblazers on a set of fairly narrow Inferno 27 rims on my El Mar. According to Sun-Ringle they are 22.3mm internal. With that combo and the dropouts all the way forward I have ~3/8" between the frame and tire at the closest point. If I interpolate from the table above they should clear with the Blunts just fine.
 
#42 ·
The WTB's tread is only around 2.25-2.3, but it's casing is much wider. It's not intended to be like a 2.4x29er, rather it's intended to put a big volume tire in place of a 29er tire/wheel.



lol. Have another look. Every single 2.8 casing number is wider than the tread number. Which is exactly how this tire was designed.
 
#40 ·
I tried three 29er frames in the past two days and a Reba Race 29 and a Fox Float 29 with my Vee Trax 3.25s fitted to i20 rims (which limited the inflated width to 72.5mm tread / 69.9mm casing). Frames were a 2008 GT Peace 9R Multi, a 2015 Salsa El-Mariachi and a 2010 Niner Air9. In all cases they fit into the dropouts to secure the QR but the side knobs made contact with the stays (seat on niner, chain on other two). Inflated diameter was slightly less than a WTB Weirwolf 29 x 2.3. Pictured is the GT with the wheel fitted. It does also mean that these frames should fit something like a WTB Trailblazer 2.8 or a Vee Trax 2.8 as they'll be smaller in diameter still and the rim dimensions can be exploited to shrink the casing/tread width in a bit (just as I used an undersized rim to check fittings with this top end of the B+ width options). The Reba didn't fit the wheel/tire at all, but the Fox did with plenty of room so the Vee Trax 2.8 even on a 50mm rim should be great.

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#45 ·
2012 Rumblefish works great



Nice clearance using wide lightning wheels, trailblazer tires front and rear. Wouldn't want to go any larger with rear tire but I already want the Nobby Nic 3.0 in front.

I also have wide lightning 29er wheels using an Ardent 2.4 in front and the trailblazer is not mean enough in front for me.
 
#46 ·
View attachment 982105

the trailblazer is not mean enough in front for me.
What pressure are you running up front? I was skeptical at first, then I dropped the pressure to ~10-12 psi and it completely changed the handling of the tire.

If you haven't tried low psi, give it a shot.
 
#49 ·
These are possible options, but have you actually fit the B+ tires in the frames? We want to make sure we test the setup before we toss them in the thread.

If you have not, hopefully someone with a Smuggler or Phantom will help us figure out if they will work.

I hope they do, they are sweet rides...