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Old 03-27-2013, 05:52 PM   #181
rtwpaul OP
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Old 03-27-2013, 06:50 PM   #182
gunnerbuck
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Quote:
Originally Posted by rtwpaul;

best stock all around gearing for most situations on this model 17-42? currently its 15-45...suggestions




[IMG
http://dmh65.smugmug.com/photos/i-x8ZL3W6/0/XL/i-x8ZL3W6-XL.jpg[/IMG]



i took out the two bolts holding the front chain guard, they came out on the motosyberia guys bikes back in 2007 and caused problems on muddy days, again best to check now



new mounted sexy rear wheel, with a TKC80







.

Hi Paul,

17/ 42 would be a good comb for mostly high speed gravel and hwy stuff... 16/ 42 represents the best compromise for the 640 as with that you can carry a 16 + 17 tooth and change to either without modifying the chain...

Personally I never change the gearing on my 640 and on one bike I run 16/42 and on the other 17/45... Both of these ratios are almost equivalent, the reason for 17/45 is longer chain life and longer chain rub block life... 17/45 puts less bight on the chain so it will run a little smoother while at the same time not rubbing against the slider block as much... In very tight trail riding situations slipping the clutch is my low gear... The clutches on these bike are very strong with my original unit still measuring well within spec after 127K KM of casual use +abuse...

That is another thing I would recommend you carry is a spare chain slider rub block as the original usually lasts about the life of 1 chain... I purchased about three and now I just glue in a new nylon rub strip to each of those blocks as they wear out...

gunnerbuck screwed with this post 03-27-2013 at 06:58 PM
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Old 03-27-2013, 07:11 PM   #183
slackmeyer
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16-42, but grind out the chainguard (or buy the duke version) so the 17t fits before you set out riding.
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Old 03-27-2013, 09:29 PM   #184
rtwpaul OP
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now the front...

the old rim weighing in at 9lb 5 oz



new rim weighs in at 8 lb 7 oz...saving 14 oz



...and again blue loctite on rotor bolts going into aluminum



fork clamp bolts were finger tight, so again some blue loctite



so here it is mounted



and the full shot

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Old 03-27-2013, 09:33 PM   #185
chasbo
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Those wheels are awesome man! Can't wait to see how the rest of the bike turns out!
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Old 03-28-2013, 05:40 AM   #186
davesupreme
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'yer really gonna like that cush hub!...
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Old 03-28-2013, 06:27 AM   #187
Dracula
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Quote:
Originally Posted by rtwpaul View Post
parts have been rolling in and trying to find time to get this going, i figured out an easy way to make more time...i quit my job
Enjoy, looking forward to following your next adventures.


Quote:
Originally Posted by rtwpaul View Post
one of the new light weight additions (maybe) is these little dodads from Motion Pro



they are always innovative in what they make but can these really make breaking a bead that much easier, as i'm not adding a center stand to keep weight down i'm interested for sure...the answer YES ...without a doubt easiest bead i have ever broken on a tire using these, and one handed at that..just have to remember to keep the writing facing upwards
I have yet to use mine, but they do look capable of doing the job. If only there was a tool to set the beads on tubeless tire I would be all set for road side tire changes.

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Vic
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Old 03-28-2013, 06:43 AM   #188
Kawidad
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Quote:
Originally Posted by chasbo View Post
Those wheels are awesome man! Can't wait to see how the rest of the bike turns out!

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Old 03-28-2013, 07:20 AM   #189
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Hey Paul,
A couple of extras?

Worlds toughest chain for a KTM?
Check the breaking strength.

http://www.ekchain.jp/product/extreme_sport.html

Keep it lubed?

http://www.pro-oiler.net/

Two countershaft sprockets for every rear sprocket no matter what size?

This chain and lube combo did a rtw for me. One rear sprocket, two countershaft.

bill
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Old 03-28-2013, 09:41 AM   #190
LukasM
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Looking good Paul, nice attention to detail.


Check out the Ironman sprockets from Dirt Tricks, they are more durable than normal steel ones yet almost as light as the aluminum ones. Best of both worlds!
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Old 03-28-2013, 02:03 PM   #191
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+1 to the Ironman sprockets.
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Old 03-28-2013, 03:59 PM   #192
wrk2surf
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Quote:
Originally Posted by rtwpaul View Post
DID don't make a 2.50 in an 18 so had to go with the 2.15, strength is the key ingredient here

yes they do ... I have one on my bike.. perhaps they dont make a black version .. the sxc that I started with had the 2.15 but I prefer the wider rim for sandy tracks
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Old 03-28-2013, 04:15 PM   #193
rtwpaul OP
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Quote:
Originally Posted by wrk2surf View Post
yes they do ... I have one on my bike.. perhaps they dont make a black version .. the sxc that I started with had the 2.15 but I prefer the wider rim for sandy tracks
what i should have said is they don't make the STX or LTX in an 18 x 2.50 which was the first choice, so i went with the dirt star...but well spotted - can't get anything by the ADV guys
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Old 03-28-2013, 04:29 PM   #194
wrk2surf
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My stock cush OEM lc4 wheel came with a DID DIRTSTAR 18x2.50 in silver

58410001244 REAR WHEEL CPL. DAMPED 2,5X18"
superceeded by
58410001544
$584.09


10 58010470100 REAR RIM 2,50X18" DID $219.29


so as I say maybe they discotinued or simply dont make it in black
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Old 03-28-2013, 04:44 PM   #195
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like i said i wanted the stx or ltx and its doesn't come in the 18x2.50 so i went with the dirt start 18x2.15...we're talking about different rims
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