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Tour Divide gear: Niner Air9

May 30, 2010

My Tour Divide race machine will be a Niner Air9, various incarnations of I have run for several years. Today was time for the final build, including new cables, derailleurs, cassette, chain, brake pads and bleed, and bar tape.  The process of shifting parts over from my previous green Niner to the new Raw (silver) one was pretty smooth.  It was also an excellent exercise, since the vast majority of the time I’m out on the Tour Divide, there simply won’t be a bike shop handy to roll into should the bike need a tweak or fix.

Back when folks still used MSR Whisperlites, I always recommended that newbies get a repair kit, and before going on their first big hike, take the time to disassemble the whole thing and put it back together again.  Then, when the weather is lousy and the stove decides to crap out on you, at least you know that you’ve taken the stove apart before.  It seems like a pretty good theory to apply to a bike.

When I was done, the first test spin was rather satisfying.  My oh my do new parts run more happily than old beat up ones!  There were some annoying creaking sounds, which through pedaling trial-and-error was clearly coming from the cranks/bottom bracket area.  Luckily that annoyance was easily removed by switching out my older style Time ATAC pedals for newer ones that I had taken off to replace bushings.  One big item just got crossed off my never-shrinking Excel To Do list.

Niner Air9 XL Raw

A shiny new drivetrain!

The bike. One odd bonus item you might spot is the Adams Trail-a-bike hitch on the seatpost. Removing that will have to be a very last minute modification since the trail-a-bike is very popular!

Dave’s Tour Divide Bike
Niner Air9 Raw XL
Chris King No ThreadSet Mango
Thomson Elite Seatpost
Thomson X4 Stem
Rock Shox Reba SL  Fork
Night-Stripes Scotchlite stickers
MEC Turbo Turtle Red LED rear light

Wheels
Stans ZTR Arch Disc Rim
DT Swiss Comp spokes black with red nipples
Chris King ISO Disc Front and Rear Hub Mango
Salsa Skewers Red
Stans Yellow Rim Tape and Sealant
WTB Nano Raptor Race 29r Tire

Drivetrain
Shimano FC-M770 XT Crankset 180mm and BB
Shimano XT M770/771 9spd Chainrings – 44t and 32t
Action Tec Titanium Inner Ring-  20t with steel chainring bolts
Sram PG 990 Cassette 11-34
Sram X.9 Front Derailleur
Sram X.9 Rear Derailleur long cage
Sram PC-971 Chain
Time ATAC XS Carbon Pedals
Avid Juicy 5 hydraulic disc brakes, 185 front, 160 rear

Cockpit
Salsa Pro Moto Flat Bar 11 degree
Ergon GX-2 Magnesium Grips
Profile Designs Carbon Stryke aero bar
Sram X.7 Trigger Shifters
Gore Ride-On Fully Sealed LF Derailleur Cables
Brooks Swift Saddle Antique Brown
VDO C3 wired computer
Garmin Vista HCx GPS with stem mount

…unveiling the bags will come in a future post.

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One Comment leave one →
  1. Ray Howard permalink
    November 7, 2010 11:49 PM

    Nice build! I came across your site while looking into options for running a 20t granny ring on my xt m770 cranks. I have one on order and was wondering if you have any install tips?

    I’ve read that I may have to file down the cranks a little.

    Also, I noticed you used different bolts other than stock.

    Good luck on your race. I saw the film on touring the divide, pretty epic.

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