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Discussion Starter · #1 ·
Hi, I just jumped outta the 29er HT and into a full squish 26er.. but i keep contemplating going 650b. Because after a year it going to be cheaper then getting another bike, already on my third in 14months.. i know i have a problem though, and im told admitting it is half the battle. lol

I have a reign and i know the rear will fit a 650b, and i know people have stuffed a 650 into the RS revelation. My question is, with the clearance between rubber and bridge so minimal is anyone having an issues with rocks jamming up the front wheel?. I would imagine the majority just make a terrible noise and remove some paint on the way through, but is locking up the front wheel a real possibility?.
 

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...not sure about the revelation but I run a SID on my XC with a neo-moto 2.1 up front and recently went OTBs when I got a 5mm piece of bark jammed in between the tyre and the bridge (about 2mm clearance). It didn't happen again on that day. The neo-moto is a higher profile to what I run now - fireXC 2.1 (this provides about 10mm clearance).
 

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I have the 2012 Giant Reign 2. It has the Fox 32 Float 150mm and I have the 650b clearing the fork quite well.

The set up is No Tubes Flox EX with a Vee Rubber Mission 650b X 2.1
 

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NedwannaB
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Tire size check here

...not sure about the revelation but I run a SID on my XC with a neo-moto 2.1 up front and recently went OTBs when I got a 5mm piece of bark jammed in between the tyre and the bridge (about 2mm clearance). It didn't happen again on that day. The neo-moto is a higher profile to what I run now - fireXC 2.1 (this provides about 10mm clearance).
Seems by all acounts from what I've seen on different threads the IRC is the smallest (hieght/casing). So if I'm reading this right, and doing a little simple math, you're saying they are about 8mm smaller then the 2.1 Neo. Is that right? Looking to get one of these maybe for the back of my 26" fs to give me a little more room then what I'm getting with the 2.1 Nev/Neo.
 

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Discussion Starter · #5 ·
I have the 2012 Giant Reign 2. It has the Fox 32 Float 150mm and I have the 650b clearing the fork quite well.

The set up is No Tubes Flox EX with a Vee Rubber Mission 650b X 2.1
whos selling a good selection of 650b's, right now im running a high roller on the rear and a Minion up front. Ideally i would like to keep with someone as aggressive, but i dont think they would clear.

Im looking at the ZTR wheelsets, just trying to find/figure out a tread thats going to work. The only tread i have found in 650 that i kinda like is the kenda nevegal.
 

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Discussion Starter · #7 ·
A new fork is cheaper than a new bike. Especially with the end of year closeouts going on.
This is what i keep coming back too, takes so stress out of it and gives me more options. But at the same time its still a new fork, and a quick way to turn a 750$ upgrade into a $1200-1500 upgrade.
 

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Seems by all acounts from what I've seen on different threads the IRC is the smallest (hieght/casing). So if I'm reading this right, and doing a little simple math, you're saying they are about 8mm smaller then the 2.1 Neo. Is that right? Looking to get one of these maybe for the back of my 26" fs to give me a little more room then what I'm getting with the 2.1 Nev/Neo.
...that's right. Note that I am running these tyres on Stan's Crest rims at ~22psi...

The fireXC is a low profile tyre but it has plenty of bite - great up front for XC race - maybe too gnarly for out back?

I have just taken delivery of some 2.1 exc x-marks (500-520gms real weight!). They also measure up the same as the fireXC, which are the same as the v-rubber mission 2.1. But the x-marks are pretty toothy for a low profile tyre. I haven't ridden the 650b version yet but they were my go-to tyre when i ran 26" wheels. I'll be running these front and back this session...

:thumbsup:
 

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Subscribed.....I too want to know if a 650b will work on a revelation (2011) bit still haven't seen any pics to convince me one way or the other once and for all.

-S

Sent from my Kindle Fire using Tapatalk 2
 

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Subscribed.....I too want to know if a 650b will work on a revelation (2011) bit still haven't seen any pics to convince me one way or the other once and for all.

-S

Sent from my Kindle Fire using Tapatalk 2
I think the Rev fork uses the same lowers as the Sektor? I easily fit a 650B Stans flow in the Sektor on my trance with about 15mm clearance on a fireXC...
 

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NedwannaB
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Really....

...that's right. Note that I am running these tyres on Stan's Crest rims at ~22psi...

The fireXC is a low profile tyre but it has plenty of bite - great up front for XC race - maybe too gnarly for out back?

I have just taken delivery of some 2.1 exc x-marks (500-520gms real weght!). They also measure up the same as the fireXC, which are the same as the v-rubber mission 2.1. But the x-marks are pretty toothy for a low profile tyre. I haven't ridden the 650b version yet but they were more go-to tyre when i ran 26" wheels. I'll be running these front and back this session...

:thumbsup:

Interesting. I was looking at the XMarx as well fir my xc bike. Surprised in your comparison in size to Fire xc. They appear to be a bigger volume. I dont need much with my weight and riding style. Maybe this will be a back tire on the fs.
 

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I think the Rev fork uses the same lowers as the Sektor? I easily fit a 650B Stans flow in the Sektor on my trance with about 15mm clearance on a fireXC...
I'm guessing they are probably the same, but not sure what year yours is. Apparently older ones do work and the newer ones don't.

You know what would help... if we can put together a template for a "typical" 650B wheel/tire cross section and make it a PDF.....anyone can then download the PDF and make a cutout for a quick test.

-S
 

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I think the Rev fork uses the same lowers as the Sektor? I easily fit a 650B Stans flow in the Sektor on my trance with about 15mm clearance on a fireXC...
Pics?

I am contemplating going to the sektor. I will, however, need to confirm it will fit some of the larger 650b tires coming soon.
 

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I cannot check the revelation myself as mine is a 15QR axle and all my 650B wheels are 9QR axles. But straight tape measure measuring puts it as "close". There's barely enough brace clearance with a Neo-Moto 2.3 and the crown clearance is below tolerances also. It'd be another case of a piece of bark on the tire = endo.
 
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