2006 640 Adventure - Chain Guide/Fin

[v8turbo]

Been searching the web, checked the threads....

2006 KTM 640 Adventure

who makes a chain guide and rear disc protection?

I think Dual-Star does... but the main guy who knows has been out.

[KenR]

ProMoto Billet makes a nice rear disk guard. An aluminum chain guide from a 620RXC will work on the 640A and can be ordered from any KTM dealer.

[clintnz]

I got mine from the KTM dealer, they said it was listed as a Husaberg part too. I had to do some minor mods to the chain guard & mix & match a few bolts to fit it but nuthin major. Vital bit to have anyways.

Cheers
Clint

[v8turbo]

got it. thanks

[bmwktmbill]

On the same subject does anyone besides Scotts's make a front disc guard for a reasonable price.
I think the Scott's is way over $100.
Bill.

[v8turbo]

Mike at Dual-Star has the chain guide in stock and the Pro-Moto Billet shark fin.

try this for front guard:

http://flatlandracing.com/Merchant2/...ont+Disc+Guard

[meat popsicle]

Originally Posted by bmwktmbill

On the same subject does anyone besides Scotts's make a front disc guard for a reasonable price.
I think the Scott's is way over $100.
Bill.

Bill,

you post that and then don't even mention that it is Scott's that makes the only serious guard for brakes?


note it afixes to the axle, unlike the "bolt on" types - much stronger I am told.

http://www.scottsperformance.com/pro...php?PartType=2

PS - pretty sure this was in the index somewhere...

[ChrisC]

RXC guide off of eBay....

[rjf]

Originally Posted by ChrisC

RXC guide off of eBay....

Part # for chaimguide in Chris C's pic -

Originally Posted by rjf

O.k. Meat, since you did the thread index I'll repay you by saying that it will bolt sraight onto the '03 swingarm. (probably) and I'll give you the correct part # as the retaining plate one originally posted by afgarcia2 was incorrect AFAIK and 1 bolt short.

Also, weren't there p/n's for the swingarm/s, anyway the '02 is plain old rectangular section, the '03 umm, kinda diamiond like ?

the '02 and '03 use the same stock chain guide,

( chain guide CPL. rear lc4 98 part# 58404070000)

so if it fits the '02 it should fit the '03.

the STD guide uses 2 mount bolts, one at either end, the braced guide (94 -97 model) looks to use 2 at the front that goes through both sides of the brace and the guide, and one bolt through one side of the brace at the rear.

The underside of my '03 swingarm ( and yours too I'd guess) has 3 bolt holes, 2 at the front and one at the rear even though 1 of the front ones has nothing bolted to it. So I reckon it should bolt straight on.

Are you sure you want the braced one ? I'm still undecided, 'cause If you bend it it could be a biatch to bend back "in the field", And to remove it you'll have to break your chain. You do run a rivet link, not a circlip on the chain doncha.

Anyways here's the Part #

chain guide rear '94 54607066100

retaining plate chain guide '94 50207070000

HH collar screw M6 *55 ws=8 0015060553

HH collar screw M6*50 ws=8 0015060503

HH collar screw M6*16 ws=8 0015060163


See ya,

Rhys.

http://www.advrider.com/forums/showt...35110&page=118

[meat popsicle]

FYI on the beefier lower chain guide: the rallye folks only use a ~minor plastic slider in the rear, probably for the reason that rhys stated in his copied post above.

660r

Just like the stock 640 guide. I thought someone said the rallye folks use something even less substantial but I don't have a pic. Certainly on the 660r price is no object ($25,000 list?) so they would have put the beefier chain guard on it if they wanted it eh?

My thought is the beefy guide might be a liability, as rhys alluded to above, and if the rallye folks get along without a substantial one then perhaps they are not necessary. But I do not know all of the issues involved... discussion?

[KenR]

I went with the RXC aluminum guide on mine. I know the rally guys use the plastic fin, but I can't see what protection or benefit it provides long term. Perhaps they're replacing chains and sprockets frequently enough that it doesn't matter.

I've run the aluminum guides on my EXC and MXC's desert racing and have never had a problem. Not to say it's not possible, but the guide on my MXC is mangled from rock hits, yet is still straight. If the chain and sprocket were taking the abuse they'd be toast and I can't see how the plastic fin would help much.

At the moment I've got a TM Designs guide on my EXC. It's basically a hard block of plastic that's supposed to deflect and return to shape. Seems to work equally well but I don't think they make them for right-side drives.

[clintnz]

+1 the alloy/plastic KTM guide is pretty beefy, mine is scarred up from encounters with rocks but still straight.

The main time you need the proper guide is when riding in ruts, the side of the rut will just deflect the std guard & flick the chain off. It happened to me a lot. I guess the Dakar guys don't see a lot of deep muddy ruts so they go for the unsprung weight reduction & just run the plastic bit.

Cheers
Clint

[rjf]

Do the people at Scotts know something we don't?

http://www.scottsperformance.com/pro...53b440f06418a2

Of course they do, But I mean in relation to the release date of the 690 ADV !!!

690 LC4 Adventure 2007		$139.95
950 Adventure 2003 - 2006		$139.95
950 Super Enduro 2007		$139.95
990 Adventure 2007		$139.95

[v8turbo]

Originally Posted by rjf

Do the people at Scotts know something we don't?

http://www.scottsperformance.com/pro...53b440f06418a2

Of course they do, But I mean in relation to the release date of the 690 ADV !!!

When I called, they didnt knowthe 690 was on the website.

[warewolf]

Originally Posted by clintnz

The main time you need the proper guide is when riding in ruts, the side of the rut will just deflect the std guard & flick the chain off. It happened to me a lot. I guess the Dakar guys don't see a lot of deep muddy ruts so they go for the unsprung weight reduction & just run the plastic bit.

The std bit is just a plastic flap, I can see how it would deflect.

The Rallye models use the hard plastic enclosure, same as inside your alloy plate. Doubt it would get deflected, but would get munted by rocks eventually.