Niner RKT 9 ready for mods...

Discuss light weight issues concerning mountain bikes & parts.

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Bonestock
Posts: 6
Joined: Sun Nov 01, 2015 3:40 am

by Bonestock

Just got my Niner RKT 9, ready to mod!

Image

It started as their "4-star" build, but started changing parts right away. So it has the niner carbon wheelset, carbon handlebar, and Niner stem.

I've changed/added:

XTR rear derailleur/front shifter (was SRAM X0)
XTR pedals
KCNC foam grips (was Niner brand)
Syntace carbon seatpost/Specialized Saddle (was Niner/WTB...no weight savings, comfort/offset required)
Ti hardware on caliper mounting
A2 rotors/titanium hardware
Ti hardware on Niner stem

It is NOT tubeless at the moment. I do not plan to install the rear shock lockout remote.

It is 24.25 lbs as it is (it's a Medium). I have some brake hose to trim down a bit, but beyond that, not sure if there is much weight to take out of it. I was thinking about an XTR rear cassette (to lose over 100g), because I don't think I really need the 42t (it has a 32t front). Thoughts?

Jmdesignz2
Posts: 272
Joined: Tue Jan 13, 2015 2:27 am

by Jmdesignz2

Those Ikons look big- what size?

weight with pedals?

by Weenie


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Bonestock
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by Bonestock

2.35 fronts, 2.20 rears.

Weight is with pedals.

mattyNorm
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by mattyNorm

Not sure what your budget to upgrade is but you could save some weight going to a raceface next sl crankset

Jmdesignz2
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by Jmdesignz2

Niner RKT9 with XO1 is $7500 so OP either has plenty of money to spend on mods or is now flat broke

Since he says he's ready for mods, I would say he's got more cash to spend ;)

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the_marsbar
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by the_marsbar

I don't think you'll get it much lighter unless you do some serious upgrades, like wheels, and lighter seatpost/saddle/stem/handlebars... I'd leave it more or less as it is.
Last edited by the_marsbar on Tue Nov 03, 2015 11:31 am, edited 1 time in total.

DanW
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by DanW

Fork too.... going to get pricey!

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LeDuke
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by LeDuke

That is one heavy bike for a $7500 XC "race bike".

Niner should be embarrassed.

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the_marsbar
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by the_marsbar

The wheels weigh 1525 g according to Niners website. That's not particularly light. Tubes might be heavy too... Converting to tubeless would be my first change.

SportingGoods
Posts: 38
Joined: Wed Jun 03, 2015 10:16 am

by SportingGoods

As said before, the first thing to do is go tubeless. The second thing I'd do is get the bike heavier... with a Reverb dropper post :)
The added weight would pay back. This bike seems to be specced for serious descent (with those big tires), it's a shame to not have a dropper post here.

nunokas
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by nunokas

Well, the RS1 is very bling but a bit "porky" :D

You can go lighter on the weels too...

11kgr is a bit heavy for such an expensive FS xc bike but it looks like it can stand some punishment on the trails :wink:


regards

Bonestock
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Joined: Sun Nov 01, 2015 3:40 am

by Bonestock

Jmdesignz2 wrote:Niner RKT9 with XO1 is $7500 so OP either has plenty of money to spend on mods or is now flat broke

Since he says he's ready for mods, I would say he's got more cash to spend ;)


Next SL crank is next, then.

Was hoping to get it in the 23s easier...but the pedals aren't exactly super light. I was hoping to find a titanium axle for the XTR pedals but have not found one yet.

Jmdesignz2
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by Jmdesignz2

Will you measure your ikons width?
Wondering how the volume compares to raceking ss

DanW
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by DanW

I was hoping to find a titanium axle for the XTR pedals but have not found one yet.


You can find them on ebay UK

I have some in my XTR 980's and they work well. The loose ball bearings are a massive PITA though! Just buy some Xpedo M-Force 8 Ti instead. Lighter, better functioning, just great. £80... again on evilbay

by Weenie


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LeDuke
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by LeDuke

Jmdesignz2 wrote:Will you measure your ikons width?
Wondering how the volume compares to raceking ss


I don't believe they make the RK SS in 29er size, so comparing it to the Ikon 29x2.2" is pointless. Different molds across different diameters produce different tires.

That said, there is a massive thread here on the RK SS 2.2 from a couple years back. It's a true, fat 2.2. The Ikon 2.2 is not.

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