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a crank BCD standard sure seems like it would make a hell of a lot of sense...

binary visions

The voice of reason
Jun 13, 2002
22,149
1,250
NC
4-104 is pretty widespread.

There really aren't that many BCD standards, whatca bitchin' about? 4-104, 5-94, and the oversized 5 bolt standard (can't remember the measurement) are about the only really widespread patterns.
 

-dustin

boring
Jun 10, 2002
7,155
1
austin
i have to order a new spider (middleburn) and ring in order to run an e13 bashguard.

is there some reasoning behind having 5/ 110, 5/ 94, and 4/ 104? that's the real question.

not counting Shimano.
 

maxyedor

<b>TOOL PRO</b>
Oct 20, 2005
5,496
3,141
In the bathroom, fighting a battle
the Inbred said:
i have to order a new spider (middleburn) and ring in order to run an e13 bashguard.

is there some reasoning behind having 5/ 110, 5/ 94, and 4/ 104? that's the real question.

not counting Shimano.
The 110 BCD comes from road, it was the first one out there, then people wanted to run smaller rings for climbing, so microdrive(94) came about, Once ring size was somewhat standardized they looked to a lighter system, hence the 104x4 one less arm and bolt, made for a lighter set-up.
 

peter6061

Turbo Monkey
Nov 19, 2001
1,575
0
Kenmore, WA
Road was 130 BCD. 110 was the standard mtb BCD until people went compact which gave us 94. All of these were 5 bolt. Then someone decided we could go 4 bolt, thus 104. Why they all still exist is a mystery to me. I thought most people now ran 104, for mtb at least.
 

DHS

Friendly Neighborhood Pool Boy
Apr 23, 2002
5,094
0
Sand, CA
no one uses the 94 bolt pattern anymore. its more turning into the 104.
look at raceface, truvativ, shimano
 

Ciaran

Fear my banana
Apr 5, 2004
9,841
19
So Cal
the Inbred said:
i have to order a new spider (middleburn) and ring in order to run an e13 bashguard.

is there some reasoning behind having 5/ 110, 5/ 94, and 4/ 104? that's the real question.

not counting Shimano.
What size do you currently have that you need a new spider to run the e.13 bashguard?
 
J

JRB

Guest
I have one of each. That makes things suck a little. I like bigger rings for true XC, but big bikes are heavy and require smaller rings for my fat ass.
 

Austin Bike

Turbo Monkey
Jan 26, 2003
1,558
0
Duh, Austin
Once the Shimano cranks give out they'll be gone.



Love having a bashguard. interesting that an extra 1/2" clearance can make the difference.
 

BurlyShirley

Rex Grossman Will Rise Again
Jul 4, 2002
19,180
17
TN
sh**, do you know how much money they make from each time some poor sucker like me ends up with a hodgepodge of mixed up drivetrain parts that dont fit, and I have to buy new ****? A bunch, I bet.
 

punkassean

Turbo Monkey
Feb 3, 2002
4,561
0
SC, CA
Why is it so hard for people to understand ever-evolving "standards"?

As the sport evolves so does the equipment to meet modern demands. Simple as that. No company is attempting to profit by introducing a new standard that forces you to buy new gear. On the contrary companies introduce new standards in an effort to evolve and offer you the best possible equipment to improve your riding experience.

I used to run 5x110 XTR Octalink Hollowtech cranks because I could use a 24/36t with a basher or an LRP. Now that dual-ring setups are much more common I run 4x104 XT Hollowtech 2 cranks with a 22/36 and a DRS. That is the best setup for my riding hands down. Do you hear me bitching about having to spend some minor coin to have more fun riding?
 

Austin Bike

Turbo Monkey
Jan 26, 2003
1,558
0
Duh, Austin
Eh, maybe I won't wait for them to die, but they're pretty strong.

Still, I have never been happier than replacing shimano pieces. All hail X9!