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J:
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Discussion Starter · #1 ·
Why is there no bead to bead measurement on mtb tires yet?

It seems like a standard measurement that should be given (flatten tire out to measure the length from bead to bead), so we know what we're getting.. Is there a wheel thread somewhere, or sticky with these measurements?
 

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You're talking about the inner tire periphery. Why would you like this measurement? Why not section width, aspect ratio or O.D. for a given inflation pressure and rim width?
 

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J:
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Discussion Starter · #3 ·
Mtb tire volume is very important.

If you want to buy another mtb tire with more or less volume, a bead to bead specification is very helpful because a rider can actually search and compare new tires to what they own.
 
G

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You're talking about the inner tire periphery. Why would you like this measurement? Why not section width, aspect ratio or O.D. for a given inflation pressure and rim width?
Because all those things you mention affect the results, people don't measure them with consistent conditions, and people don't understand the interactions. With b2b measurements you can compare tires more directly without the influence of knob shape, rim width, and inflation pressure. Way more useful.

I've stopped measuring tires any other way. Create a sticky and I'll be happy to add the measurements I have. The Fat Bike forum has this.
 

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J:
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Discussion Starter · #6 · (Edited)
Bead to Bead 26" Mtb Tire Measurement ( b2b / Tire Volume List )

- 559 BSD

Continental
Trail King ( Germany ) 2.4"
164mm used
Trail King protection apex 26" ( Germany ) 2.4"
170mm used
Rubber Queen 2.4 BCC (Trail King before it was re-labeled)
164mm used
Der Baron 2.5" BCC 2ply wire bead
156mm used

Maxxis
Ardent 2.4" Exo Protection ( Taiwan )
159mm used
Ardent 2.4 Exo TR Dual 60-559
157mm
Griffin 3C MaxxGripp 2.4" 2ply wire bead
156mm used
Minion DHF 2.5" ( Taiwan )
152mm used
Minion DHF 2.35" Maxxpro 60a Exxon Exxpro ( Taiwan )
141mm used
Minion DHF 2.3 Exo TR Dual
156mm
Minion DHR2 2.4 Exo 3C
154mm used
Minion DHR2 2.4 Exo MaxxPro
153mm used
Minion DHR II PLUS 2.8" "35 psi" EXO TR ( Taiwan )
161mm new

Michelin
Wild Grip'r 2.35 Advanced Reinforced Gum-X
157mm

Onza
Greina 2.4 FRC 55a
149.5mm used

Schwalbe
Hans Dumpf 2.35" Performance Line Off Road Racing Compound ( Indonesia )
159mm used
Hans Dampf 2.35 SG TS
158mm
Magic Mary SnakeSkin TrailStar 2.35":
154mm used
Muddy Mary 2.35" Freeride trailstar triple compound Snakeskin ( Indonesia )
160mm used
Nobby Nic 2.4" Snakeskin Evo Pacestar triple compound tubeless ready ( Indonesia )
159mm used
Rock Razor 2.35 PS SS
152mm used

Specialized
Clutch Control 2bliss ( Taiwan ) 2.3"
149mm used

WTB
Prowler SS 2.3" Race FR 60tpi Aramid bead/ Super Track DNA Rubber ( China )
149mm used
Weirwolf 2.3" AM TSC FR 60tpi Aramid bead/ Inner peace/ Dual DNA ( China )
146mm used
Weirwolf 2.3" wire bead ( China )
140mm used
Weirwolf 2.1" Race xc 60tpi Aramid bead/ DNA Rubber ( China )
140mm used
Ranger 3.0" TSC fast rolling ( China )
184mm new
Ranger 2.8" TSC fast roll ( China )
171mm new

_____________________________________


Wheel size

Manufacturer- Make/ Model/ Width
Bead to Bead-

If anyone wants to help, use this format ^^ so the thread is searchable.

To keep it organized, list tires for wheel size (separate 26", 29", 650b/27.5").

What is advertised on a tire can change each year so make sure to list what's printed on the sidewall. State new if you prefer to measure before the tire has been used.
 

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J:
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5,128 Posts
Discussion Starter · #7 · (Edited)
Bead to Bead 29" Mtb Tire Measurement ( b2b / Tire Volume List )

- 622 BSD

Bontrager
Chupacabra 3.0" TLR
185mm new
XR4 29" x 2.35"
157mm new

Continental
RaceKing 2.2" Protection
152mm
Trail King 2.4"
159mm new
X-King 2.4" Protection Black Chili
157mm new


Geax
Gato TNT
152mm new
Goma 2.4"
161mm new

Maxxis
Ardent 2.25" wire bead ( Taiwan )
152mm used
Ardent 2.4"
153mm new
Chronicle 3.0" Dual Compound
188mm new
High Roller II 2.4"
150mm new
High Roller II 2.2"
150mm new
Ikon 2.35"
153mm new

On One
Smorgasbord trail extreme 2.25" ( Taiwan )
143mm new
Chunky Monkey trail extreme 2.4" ( Taiwan )
155mm new

Onza
Ibex 2.4" FRC120 RC2 55a dual racing compound TLR
154mm new

Panaracer
Fat B Nimble 120 tpi
177mm new

Schwalbe
Hans Dumpf 2.35"
148mm new
Nobby Nic 2.35"
155mm new
Racing Ralph 2.35, EVO, NOT SnakeSkin...
164mm used
Rocket Ron 2.25" SnakeSkin ( Indonesia )
145mm used
Rock Razor 2.35"
155mm new
Thunder Burt 2.10"
130mm new
Thunder Burt 2.25"
140mm new

Surly
Dirt Wizard 120 tpi
172mm new
Knard 3.0"
184mm new

Specialized
Butcher
150mm new
Fast Trak 2.0"
134mm new
Fast Trak 2.2"
142mm new
Ground Control
150mm new
Renegade 2.35"
158mm new
Slaughter Control
150mm new

Vittoria
Bomboloni 120 tpi
173mm new

Vee
Trax Fatty 3.0"
184mm new

WTB
Breakout 2.3" Fast Light TCS
159mm b2b new
Nano
145mm new
Trail Boss 2.4"
160mm new
Trail Boss 2.4" ( China )- fast roll tough tsc
163mm new
Vigilante 2.3"
156mm new

______
Google doc link below with spreadsheet of tires measured when new, created/updated and credit to Craigsj.

https://docs.google.com/spreadsheets/d/1dJpZsY3X_jR6N1TuYwz_clONUs0na2B1XaCaUIctX6U
 

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J:
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5,128 Posts
Discussion Starter · #8 · (Edited)
Bead to Bead 650b / 27.5" Mtb Tire Measurement ( b2b / Tire Volume List )

- 584 BSD

Bontrager
SE5 2.3" Team Issue 56-584
149mm b2b (new)
XR3 2.2" Team Issue 54-584
148mm b2b (new)
XR3 2.35" Team Issue 58-584
156mm b2b (used)
XR4 2.35" Team Issue TLR
156mm

Continental
Mountain King II 2.2" Protection Black Chili 55-584
142mm b2b (used)
X-King 2.4" Protection Black Chili 60-584
153mm b2b (used)

Geax
Goma 2.4"
161mm new

Maxxis
Ardent 2.25" EXO 3C 57-584
153mm b2b (used)

Michelin
Wild Grip'r 2.35" Advanced Technology ( Thailand )
156mm used
Wild Enduro 2.4" Gum-x3d TLReady ( Thailand )
168mm b2b new
Tread width 60mm & 62mm on i26 Pacenti DL31_Tread depth center- 5mm_transition- 5mm_Side lugs- 7.5mm inner edge

Onza
Ibex FRC60 ( Switzerland ) 2.4"
154mm

Pacenti
Neo-Moto 2.3" 58-584
139mm B2B (used)

Panaracer
Neo-Moto 2.3" 58-584 (exact same mold, probably also rubber, different label)
139mm B2B (new)

Schwalbe
Hans Dumpf 2.35"
151mm used
Magic Mary 2.35" Evolution Snakeskin tubeless Trailstar 3 ( Indonesia )
164mm used
Nobby Nic, EVO Trailstar TL Easy 2016, 27.5x2.35
6.25" or 159 mm 670 grams (claimed 685) new
Racing Ralph, EVO Pacestar TL Easy 2016, 27.5x2.2
6" or 152 mm 610 grams (claimed 585) new

Specialized
Slaughter 2.3" Control 58-584
154mm b2b (used)

WTB
Breakout 2.5" TSC aramid bead, High Grip Tough, Enduro casing, Gravity DNA ( China ) 1275g
166mm new
169mm used
Breakout 2.5" TSC aramid bead, Fast Rolling Tough, Enduro casing, Dual Compound DNA ( China ) 1083g
168mm new
170mm used
Trailblazer 2.8" TSC Fast Rolling lite ( China )
167mm new
172mm used
Vigilante 2.3" TLR (older model, I think it's the same as today's Light Fast?) 57-584
160mm b2b (used)
 

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J:
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5,128 Posts
Discussion Starter · #10 ·
i don't get it, do you want b2b measurements or bsd measurements?
Bead to Bead Measurement. I put those there so people will be able to quote for their wheel size and fill in the blanks. I'll update it when I have time to measure some tires. That way a specific tire can be found using the thread search.

What should the template look like?

Maybe each post should have wheel size at the top, then list the measurements for tires you have for that wheel size. Say if you have 26", 29" and 650b / 27.5" wheels, make a new post for each wheel size to keep it organized.


Wheel size-


Manufacturer-

Make/ Model/ Width-

Bead to Bead Measurement-
 

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Because all those things you mention affect the results, people don't measure them with consistent conditions, and people don't understand the interactions. With b2b measurements you can compare tires more directly without the influence of knob shape, rim width, and inflation pressure. Way more useful.

I've stopped measuring tires any other way. Create a sticky and I'll be happy to add the measurements I have. The Fat Bike forum has this.
I understand what you're saying, but the inner tire periphery only gives you an idea of the tires' volume. For example, by changing the bias angle of the plies you'll change the section height and section width of the inflated tire, but the inner tire periphery will not change. And of course the tread depth and shoulder must be taken into consideration when looking at the tire O.D. and overall width. I guess it could be useful in comparing one 2.1" tire to another 2.1" tire.
 

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meow meow
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10,622 Posts
Bead to Bead Measurement. I put those there so people will be able to quote for their wheel size and fill in the blanks. I'll update it when I have time to measure some tires. That way a specific tire can be found using the thread search.

What should the template look like?

Maybe each post should have wheel size at the top, then list the measurements for tires you have for that wheel size. Say if you have 26", 29" and 650b / 27.5" wheels, make a new post for each wheel size to keep it organized.


Wheel size-


Manufacturer-

Make/ Model/ Width-

Bead to Bead Measurement-
oh, i see what your saying. the format looks good. i have a few tires kicking around, ill get to measuring.
 

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J:
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5,128 Posts
Discussion Starter · #13 · (Edited)
Some things I noticed while measuring, there is a mark near each bead that makes it easier to line up the ruler in a straight line across the tire.. also folding the tire makes it easier to press it flat onto the ruler, and pulled hard to tension so the beads can be fully spread apart. *edit* I also measure "from the 1" for accuracy, some measuring tapes have a clip at the end and aren't accurate from zero..
 

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J:
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5,128 Posts
Discussion Starter · #14 · (Edited)
Here's some that were laying around..

- 559 BSD


Manufacturer- Continental
Make/ Model/ Width- Trail King ( Germany ) 2.4"
Bead to Bead- 6 7/16"

Manufacturer- Maxxis
Make/ Model/ Width- Minion DHF 2.5"
Bead to Bead- 6"
Make/ Model/ Width- Minion DHF 2.35" Maxxpro 60a Exxon Exxpro ( Taiwan )
Bead to Bead- 5 9/16"

Manufacturer- WTB
Make/ Model/ Width- Weirwolf 2.3" AM TSC FR 60tpi Aramid bead/ Inner peace/ Dual DNA ( China )
Bead to Bead- 5 3/4"
Make/ Model/ Width- Weirwolf 2.1" Race xc 60tpi Aramid bead/ DNA Rubber ( China )
Bead to Bead- 5 1/2"

Manufacturer- Schwalbe
Make/ Model/ Width- Muddy Mary 2.35" Freeride trailstar triple Snakeskin ( Indonesia )
Bead to Bead- 6 5/16"

Manufacturer- Specialized
Make/ Model/ Width- Clutch Control 2bliss ( Taiwan ) 2.3"
Bead to Bead- 5 7/8"
 

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J:
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5,128 Posts
Discussion Starter · #15 · (Edited)
- 584 BSD

Manufacturer- Onza
Make/ Model/ Width- Ibex FRC60 ( Switzerland ) 2.4"
Bead to Bead- 6 1/16"

Manufacturer- Schwalbe
Make/ Model/ Width- Hans Dampf 2.35"
Bead to Bead- 5 15/16"
 
G

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I understand what you're saying, but the inner tire periphery only gives you an idea of the tires' volume. For example, by changing the bias angle of the plies you'll change the section height and section width of the inflated tire, but the inner tire periphery will not change. And of course the tread depth and shoulder must be taken into consideration when looking at the tire O.D. and overall width. I guess it could be useful in comparing one 2.1" tire to another 2.1" tire.
The differences you mention in the bias angle example would be far less than the rampant dishonesty in tire size ratings that we have today. You're idea of comparing 2.1" tires is evidence of that. Crazy ratings are only getting worse in the fat and + ranges.

I think "an idea" of a tire's volume is what we want anyway. It doesn't tell us everything but it tells us more than "2.1".
 

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J:
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5,128 Posts
Discussion Starter · #17 ·
I understand what you're saying, but the inner tire periphery only gives you an idea of the tires' volume. For example, by changing the bias angle of the plies you'll change the section height and section width of the inflated tire, but the inner tire periphery will not change. And of course the tread depth and shoulder must be taken into consideration when looking at the tire O.D. and overall width. I guess it could be useful in comparing one 2.1" tire to another 2.1" tire.
BTW, thanks for contributing. I think this can be useful to get a better idea for comparison. Just remembered this Bead to Bead thread and notice people using this- "b2b".

Is this "b2b" term something that some manufactures are starting to use?
 

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Why is there no bead to bead measurement on mtb tires yet?

It seems like a standard measurement that should be given (flatten tire out to measure the length from bead to bead), so we know what we're getting.. Is there a wheel thread somewhere, or sticky with these measurements?
I agree 100%!
 

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J:
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5,128 Posts
Discussion Starter · #19 · (Edited)
- 584 BSD


Manufacturer- Michelin
Make/ Model/ Width- Wild Grip'r 2.35" Advanced Technology ( Thailand )
Bead to Bead- 6 1/8"

Manufacturer- Schwalbe
Make/ Model/ Width- Magic Mary 2.35" Evolution Snakeskin tubeless Trailstar 3 ( Indonesia )
Bead to Bead- 6 7/16"
 

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Is this "b2b" term something that some manufactures are starting to use?
Not really that I know of. Maxxis uses that term to describe puncture protection layer that runs the entire outer circumference of the profile. And certain manufacturers of tire imaging equipment use the term to convey that their equipment images the entire profile, including sidewalls.
 
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