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PostPosted: Sat Oct 06, 2012 9:26 pm 
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Joined: Sat Jan 03, 2009 9:43 pm
Posts: 2893
Location: Canada
Hi guys

let me show you my racing weapon for next season. Its a 2012 rocky mountain vertex 990 RSL.

Here is the actual build list:

frame: rocky mountain vertex RSL 29er medium
fork: rockshox sid RL 29er 15mm maxle with remote lockout
seatpost: KCNC Ti pro lite 27.2x400mm
saddle: fizik antares kium
stem: KCNC sc wing 100mm
handle bar: MT ZOOM XL 740mm cut to 680mm
seatpost collar: KCNC
headset: cane creek with carbon spacers and Tune carbon top cap with black aluminium bolt
brakes: sram XO
rotors: avid HS1 160mm front and rear
shifters: sram XX grip shift 10 speed
front derailleur: sram XO
rear derailleur: sram XO
cassette: sram XO
chain: sram
crankset: sram quarq 39/26 rings
grips: ESI racer edge cut to 80mm
bottle cages: ebay carbon with blue alloy bolts
computer: garmin edge 500
wheels: dt swiss x1,5 straight pull hubs, 28 spokes
tires: maxxis Ikon 2.2 tubeless
pedals: egg beater 2

The stock bike weighted 9,95kg without pedals

here are a few changes I made with the weight savings or weight additions:

cockpit
stock raceface turbine 700mm flat bar to MT ZOOM 680mm flat bar: -83g
stock raceface turbine 90mm stem to KCNC sc wing 100mm stem: -26g
stock raceface next SL carbon seatpost to KCNC Ti pro lite: -61g
stock fizik tundra 2 saddle to fizik antares: -39g
stock sram XO trigger shifters to sram XX grip shifters (including cables): -38g
stock grips to ESI cut to 80mm: -70g

braking
removed front rotor adapter: -13g
180mm avid HS1 to 160mm avid HS1 rotor: -38g
shorter brake caliper bolts: -4g

Misc
stock cane creek top cap/bolt to Tune carbon top cap and black alloy bolt: -11g
stock seatpost collar to KCNC collar: -3g
stock alloy spacers to carbon spacers: -7g
removed plastic pie plate behind cassette: -23g
carbon cages: +50g

wheels
stock continental raceking racesport 2.2 to maxxis Ikon exc exo 2.2: +74g
removing tubes: -416g
adding valves: +13g
adding stans latex: +208g

Drivetrain
stock sram s2210 carbon crankset to sram quarq 39/26: +52g

total saving: 435g

actual weight: 9,515 kg

The wheels are very heavy at 1913g. A proper racing wheelset/tire/cassette/rotor will drop at least 500g if not more. I have some american classic hubs here waiting to be built on stans crest and dt revolution spokes, with continental raceking racesport tires, sram XX cassette and KCNC rotor with Ti bolts, should be light.

I could also cut the seatpost and save something like 25-35g.

hope you like it!

Image
Image
Image
Image

Nice details on the brakes
Image

And on the rear derailleur
Image

Also on the brake caliper
Image

12mm rear axle
Image

internal cable routing
Image

the routing exits a removable port near the BB. The routing is easily done removing the port which leaves a big hole to exit cables
Image

press fit BB
Image

the sid RL fork
Image

blue bolts, small, subtle details
Image


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Posted: Sat Oct 06, 2012 9:26 pm 


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PostPosted: Sat Oct 06, 2012 11:17 pm 
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Location: Brooklyn
Like the short HT to keep the front low and the sloping TT so the bar will not hit the TT. Vertex should only be made in Easton tubing though :D


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PostPosted: Sun Oct 07, 2012 12:31 am 
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Location: Geeeelong! / YURP
Like it mate! :beerchug:

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PostPosted: Sun Oct 07, 2012 1:52 am 
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Posts: 438
Location: Canada
Nice build, you have an eye for the small details.. Further to that will you be rotating the brake banjos on the calipers to smooth the transition to the fork and the seat stay? The brake lines also seem quite long a free bit of weight savings..

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PostPosted: Sun Oct 07, 2012 2:52 am 
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Posts: 1370
Location: Mountain View, California
Well done!

Keep an eye on the KCNC post. I broke the Ti bolts on my... and was never happy with it.

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PostPosted: Sun Oct 07, 2012 12:54 pm 
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Joined: Mon Feb 19, 2007 3:44 am
Posts: 1684
Location: Canada
Very nice !!!

Lots of attention to details. Agree on the low front end. Makes it look "racy"...

Also, looks like you have an appropriate playground for MTBing behind in your backyard :thumbup: ...

Louis :)


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PostPosted: Mon Oct 08, 2012 1:34 pm 
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Location: Canada
crohnsy wrote:
Nice build, you have an eye for the small details.. Further to that will you be rotating the brake banjos on the calipers to smooth the transition to the fork and the seat stay? The brake lines also seem quite long a free bit of weight savings..


if I rotate the bango, do I need to adjust anything or its a simple operation?

thanks guys, looking foward to ride the bike for the first time soon...!


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PostPosted: Mon Oct 08, 2012 5:18 pm 
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hi,
can you tell me the real weight of the handlebar, before and after being cut?

thanks


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PostPosted: Mon Oct 08, 2012 6:55 pm 
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Posts: 438
Location: Canada
devinci wrote:
crohnsy wrote:
Nice build, you have an eye for the small details.. Further to that will you be rotating the brake banjos on the calipers to smooth the transition to the fork and the seat stay? The brake lines also seem quite long a free bit of weight savings..


if I rotate the bango, do I need to adjust anything or its a simple operation?

thanks guys, looking foward to ride the bike for the first time soon...!



Loosen the 8 mm banjo bolt about 1/4 turn, rotate it into place and then re-tighten the banjo bolt. No other steps are required, very easy to do..

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PostPosted: Mon Oct 08, 2012 7:41 pm 
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Location: Canada
cezinho wrote:
hi,
can you tell me the real weight of the handlebar, before and after being cut?

thanks


740mm: 165g
680mm: 156g


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PostPosted: Mon Oct 08, 2012 10:05 pm 
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Posts: 7518
Location: Los Angeles / Glendale, California
Really well done! Nice. :thumbup:
Good luck in the races.

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PostPosted: Wed Oct 10, 2012 7:58 am 
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Joined: Sun Apr 23, 2006 11:15 pm
Posts: 24
Location: Netherlands
Hi,

Nice build!

But how does it ride? Is it indeed very comfy?

Beste regards Rolfo


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PostPosted: Wed Oct 10, 2012 1:58 pm 
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Posts: 2893
Location: Canada
@prendrefeu

thanks!

@rolfo

first ride yesterday, a bit over 1 hour on the trails and 2 hours on dirt roads. It does keep its speed a lot better over small to medium roots. There is obviously more traction when climbing and cornering. Unfortunately, I couldnt push it at its best in the corners cause the trails were covered in wet maple leafs, very very slippery. On dirt roads, it keeps its speed better and rolls smoother. Very nice bike, I cant wait to push it hard in the trails and get a racing wheelset!


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PostPosted: Mon Oct 15, 2012 8:26 pm 
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Joined: Sat Jan 03, 2009 9:43 pm
Posts: 2893
Location: Canada
after a few rides I can add a few comments

the bike is harder to bunnyhop/wheelie VS my 26in
im not used yet to the slightly slower sterring, which makes me miss the good lines in faster technical sections
harder to pump
the rollover hability is neglectable over medium to big roots
a bit harder to accelerate (heavy wheels)

the bike rolls fast and really keeps its speed, especially on flat parts and descents
there is more traction on climbs and corners

Overall I love the bike and cant wait to really get used to it, the trails are still covered in wet leafs so its hard to really hammer it.


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Posted: Mon Oct 15, 2012 8:26 pm 


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PostPosted: Mon Oct 15, 2012 9:42 pm 
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Joined: Tue Feb 02, 2010 4:22 pm
Posts: 732
Location: Brooklyn
I highly recommend wider bars on 29ers which helps the steering. I personally ride a 760mm bar on my GT (I am 187cm) and ride the bike more over the front like how I ride/rode my DH bike.


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