Which BB for 2010 Scott Spark 10?

Discuss light weight issues concerning mountain bikes & parts.

Moderator: Moderator Team

Post Reply
User avatar
mrowkoob
Posts: 1472
Joined: Thu Feb 26, 2004 7:35 pm
Location: Middle of nowhere, EU

by mrowkoob

I have a 2010 Spark 10 with XT crankset. Anyone know what BB I need I´m unsure of the BB format is it BB92 or other?
The unbearable wallet lightness of being a weightweenie

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓    Broad Selection ✓    Worldwide Delivery ✓

www.starbike.com



Jepas
Posts: 71
Joined: Wed Feb 22, 2012 6:56 pm

by Jepas

You can look at it yourself. If you see this:
Image
The frame uses BSA standard.

Bu if you see this:
Image
Your frame uses PF standard.

I am almost sure 2010 Spark frames uses BSA standard, but you should check (it is easier this way).

User avatar
mrowkoob
Posts: 1472
Joined: Thu Feb 26, 2004 7:35 pm
Location: Middle of nowhere, EU

by mrowkoob

Mine is integrated as the pf picture the problem is Scott apparantly made two versions one pf30 and one BB92 both integrated.....the bsa you picture is before this so there are three standards... and I have either pf30 or bb92...
The unbearable wallet lightness of being a weightweenie

Raineman
Posts: 185
Joined: Mon Oct 06, 2014 2:03 pm
Location: Kent, UK

by Raineman

According to the archives it is BB92

http://issuu.com/rideonscott/docs/2010b ... 74/2666912 p17

User avatar
yourdaguy
Posts: 2204
Joined: Thu Mar 17, 2005 3:25 am
Location: Southern Indiana USA
Contact:

by yourdaguy

Call Scott with Serial Number.
For certain parts stiffer is more important than lighter.

User avatar
bikerjulio
Posts: 1900
Joined: Fri Dec 11, 2009 10:38 pm
Location: Welland, Ontario

by bikerjulio

Shimano have never made a BB30 crankset. So by deduction it's either a BB90 or BB91.

And given this article in 2010 said BB90, I'm guessing it's BB90

BB86/BB90

Some frame manufacturers like Scott, Trek, and Giant have tried to take the BB30 system even further, creating the “integrated bottom bracket.” This system requires yet another new bottom bracket shell sizing, designed around the diameter of bearings in existing external cup bottom brackets. The technology behind BB86/90 systems is similar to BB30, but it is designed to be used with existing external cup, two piece cranksets. Just like BB30, bearings are pressed into the shell, eliminating the need for cups and threads, and again, eliminating more weight. BB86 and BB90 get their names from the width of the shell (86mm and 90mm wide), while BB30 got its name from the 30mm spindle diameter. Shimano’s own adaptation and proprietary interpretation of this technology is called the “Shimano Press Fit” bearing system. Shimano has not yet adapted any of their products to the BB30 system, and is instead investing its resources into its incompatible Press Fit systems.


or maybe not :D Is that only on road bikes? In which case it's BB91
There's sometimes a buggy.
How many drivers does a buggy have?

One.

So let's just say I'm drivin' this buggy...
and if you fix your attitude you can ride along with me.

http://www.youtube.com/watch?v=GekiIMh4ZkM

User avatar
yourdaguy
Posts: 2204
Joined: Thu Mar 17, 2005 3:25 am
Location: Southern Indiana USA
Contact:

by yourdaguy

Yes, but there are adapters for bb30 and Shimano.

Sent from my Nexus 9 using Tapatalk
For certain parts stiffer is more important than lighter.

User avatar
bikerjulio
Posts: 1900
Joined: Fri Dec 11, 2009 10:38 pm
Location: Welland, Ontario

by bikerjulio

True, although I don't know if BB30 to Shimano adapters were ever used in an OEM situation.

Seriously OP, you could have had the crank off in 2 minutes and had a look.

My money is on BB91

Image
There's sometimes a buggy.
How many drivers does a buggy have?

One.

So let's just say I'm drivin' this buggy...
and if you fix your attitude you can ride along with me.

http://www.youtube.com/watch?v=GekiIMh4ZkM

User avatar
mrowkoob
Posts: 1472
Joined: Thu Feb 26, 2004 7:35 pm
Location: Middle of nowhere, EU

by mrowkoob

Scott Customer service just says BB92 and does not seem to know if it´s 41A or B

A dealer in Germany specifies:

"In this case Scott used a road bottom bracket size,

Shimano Dura-Ace SM-BB92-41B Press Fit Bottom Bracket Cups."

I specifically asked again if I should not use 41A (the mtb standard) but they were adamant that I should use the road version.

I write this mainly for others seeking the same info in the future.
The unbearable wallet lightness of being a weightweenie

User avatar
bikerjulio
Posts: 1900
Joined: Fri Dec 11, 2009 10:38 pm
Location: Welland, Ontario

by bikerjulio

That's what I said.

BB91 and BB92 are the same thing BTW. One type.

see here http://www.competitivecyclist.com/shimano-bb92-bottom-bracket
There's sometimes a buggy.
How many drivers does a buggy have?

One.

So let's just say I'm drivin' this buggy...
and if you fix your attitude you can ride along with me.

http://www.youtube.com/watch?v=GekiIMh4ZkM

wingguy
Posts: 4318
Joined: Thu Mar 08, 2012 11:43 pm

by wingguy

mrowkoob wrote:Mine is integrated as the pf picture the problem is Scott apparantly made two versions one pf30 and one BB92 both integrated


Really? I didn't think Scott had ever made a PF30 bike?

Edit: Also arent BB92 41A and 41B identical in dimensions but with heavier internal sealing on the 41A?

jooo
Posts: 1510
Joined: Wed Feb 02, 2011 3:48 am

by jooo

Scott seem to have done a few PF30 MTB frames but I've got no idea how many were sold to plebs.

I'm guessing they were made so pro's could run the BB30 XX or XX1 cranks which save a decent bit of weight over the GXP versions. Schurter has been running the BB30 cranks pretty much since SRAM XX was released.

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓    Broad Selection ✓    Worldwide Delivery ✓

www.starbike.com



Post Reply