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M6 and LG1HELP

568 Views 12 Replies 6 Participants Last post by bapesta, Jun 26, 2009

bapesta

Discussion Starter · Jun 22, 2009

I'll be running the new LG1 on my 2009 M6, just wondering how many spacer/s should I put on the mounting?whats the chain line for the M6?

I'll be running RF Atlas FR crank, any clue on the spacer/s for it?

thanks

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esquire

· #2 · Jun 23, 2009

83mm

I wasn't aware that RF made the Atlas FR in an 83mm width. If you have the proper bottom bracket, its a simple matter of mounting the LG-1 on the ISCG-05 tabs, use the amount of spacers that your directions call for (probably 1 drive side, typically) and mount it. The LG-1 isn't held in with the bottom bracket creating a spacer nightmare.

The chainline I believe you are looking for is 54.5, but that is from memory so don't quote me on that.

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Orange-Goblin

· #3 · Jun 23, 2009

They sell the crank arms in 83mm definitely, as i almost bought a set, but am getting saints again instead.

As esquire says, the LG-1 should be ISCG mounted, meaning the spacers are only needed to space the crank out appropriately.

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boogenman

· #4 · Jun 23, 2009

I have always found that trial and error seems to be the best way to set up a chainguide. You only set it up one time so it is not that big of a deal.

Either way, I run zero spacers with a STS and Holzfeller cranks on my M6

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bapesta

Discussion Starter · #5 · Jun 23, 2009

esquire: they're doing them in 83 on every colour...

thanks all...

still need proper info on the chain line

thanks

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esquire

· #6 · Jun 23, 2009

Nice

Wow, great option then. I don't see them on QBP, will have to check BTI for availability. Great job by Raceface as a lighter crankset was definately in need for 83mm.

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philw86

· #7 · Jun 25, 2009

Whoops I should have picked up on this earlier.

You're going to need to setup the cranks to run in the 57mm chainline setup (1xBlack 4x White non-drive and 1x Black on Driveside).
http://www.raceface.com/comp/inst/FR-DH_Crankset_web.pdf

Ideally chainline should be 57.5, so either the 57mm or 58mm chainline should be close enough.

From there, I would mount up your cranks with one black and one gold spacer for the LG1. Install cranks. If things aren't centered, hold up ISCG spacers against chainring, use the center of the top slider to determine how much more the backplate needs to come out or in. Pull cranks, and fix your spacing.

I know the Atlas FR's take a while to install/uninstall, but you shouldn't need to pull them more than twice if you think about the spacing after the first try. Just make sure everything is snug, and you remove the granny ring spider right off the bat (it should be bolt on).

Cheers,
philip @ e*thirteen

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esquire

· #8 · Jun 25, 2009

Nice...

philw86 said:
Whoops I should have picked up on this earlier.

You're going to need to setup the cranks to run in the 57mm chainline setup (1xBlack 4x White non-drive and 1x Black on Driveside).
http://www.raceface.com/comp/inst/FR-DH_Crankset_web.pdf

Ideally chainline should be 57.5, so either the 57mm or 58mm chainline should be close enough.

From there, I would mount up your cranks with one black and one gold spacer for the LG1. Install cranks. If things aren't centered, hold up ISCG spacers against chainring, use the center of the top slider to determine how much more the backplate needs to come out or in. Pull cranks, and fix your spacing.

I know the Atlas FR's take a while to install/uninstall, but you shouldn't need to pull them more than twice if you think about the spacing after the first try. Just make sure everything is snug, and you remove the granny ring spider right off the bat (it should be bolt on).

Cheers,
philip @ e*thirteen

Ok, putting Phil's email address into address book NOW! Even shops have a tough time with this stuff there being so many different options out there, nice to have you as a resource.

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Cord

· #9 · Jun 25, 2009

On the team M6's we run 1 black 1 white on the drive side crank, chainring in middle position (granny driver removed) and no spacers between ISCG and chain device. With the bike unweighted rotate the chain device until the plastic lower guide is approx 3mm from touching the swing arm. Job done.

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bapesta

Discussion Starter · #10 · Jun 25, 2009

Cord said:
On the team M6's we run 1 black 1 white on the drive side crank, chainring in middle position (granny driver removed) and no spacers between ISCG and chain device. With the bike unweighted rotate the chain device until the plastic lower guide is approx 3mm from touching the swing arm. Job done.

cool...what about the non-drive side crank?what spacer/s are you running?

whats the chain line you've got now?

thanks

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Cord

· #11 · Jun 25, 2009

Err whatever it says you need in the instructions! I think it's 3 white and 1 black????????????? Can't quite remember.

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philw86

· #12 · Jun 25, 2009

That would be a 58mm chainline. Sounds good.

Again, all the specs are above in the link I sent. With an 83mm shell, you should have two black 2.5mm BB spacers under the driveside BB cup, and one 2.5mm BB spacer on the non-drive.

As long as you keep those spindle configurations in mind, you should be pretty good.

Good luck!

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bapesta

Discussion Starter · #13 · Jun 26, 2009

cool...thanks

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