New Review: 2013 Felt F65x Disc Cyclocross Bike

You heard it here first, disc brakes are awesome for cyclocross.  OK, maybe not FIRST, but I've been pushing for disc since about 2008, but the frame and fork selection was lacking.  Currently components are catching on, but now they're behind the frames.  With many manufacturers rolling out brand new carbon CX frames this year to add to their current aluminum setups, and component manufacturers flashing a glimpse here and there of hydraulic setups, we know this is the way of the future.

For my first full-fledged attempt at disc CX I went with the Felt F65x.  Why?  It's the best thing that's readily available without going custom.  The frame is very similar to the F55x, so I know it'll handle well.  The geometry is dialed for me, so much so that my Independent Fabrication Cross Jester is based on the stock 57cm Felt cross bikes.

There's a lot going on with this build, so I'm going to take this in multiple entries.  First, let's cover the bike, we'll cover the pros and cons of the build next, and later cover the performance advantages and disadvantages.

The F65x isn't the lightest bike I've ever owned, but with alloy clinchers, disc brakes, alloy cockpit, a Quarq, 2012 SRAM Red, bottle cage, computer mount, and set up tubeless this bike still came in under 19lbs.  I assume a carbon equivalent with some light race wheels will come in around 17lbs, give or take.

The stock bike comes with a SRAM Apex/Rival build, Felt CX3R wheels, Avid BB5 brakes, and a nice SRAM S300 BB30 crankset.  The rear is spaced at 135mm, exactly what I think will be the de facto spacing.  The build is solid, and probably better than I would expect for a $1750 bike with such a nice frame.

The stock fork is a super-beefy Felt UHC model which offering some really great stiffness and a better than average ride quality.  Off-road the bike tracks very well, though when overgeared and sprinting on the road I am able to make the rotors rub the pads occasionally.  At some point down the road, I'll be giving the ENVE Disc CX fork a try.

Off the bat I clearly made a number of changes.  The 2012 SRAM Red is probably one of the first things many people will notice.  I'm smitten with it, but you can read my review on it here.  The addition of a Quarq was of course necessary since I'm numbers-driven, but it's a swap from my other bike anyway.  Seatpost became a Thomson because I just flat out trust their work.  The stem is currently a Zipp Service Course SL until a Thomson Elite X2 comes in, and the bars are Zipp SLC2 Short and Shallow which have been with me for 3 years and on countless bikes.

I kept the stock BB5 brakes on board, primarily because I forgot to bring the BB7's in when building the bike.  So far, the performance has been extraordinary.

Now let's talk about the wheel swap.  I wanted to keep this build "reasonable", other than the Quarq and Red of course.  I wanted to come up with a wheelset that can be put onto the stock bike and shed a nice chunk of weight, provide a huge performance benefit, and offer the best tubeless compatibility.  I've been using Stan's wheels since I started in mountain biking and have loved them ever since.  This year I managed to ruin a few sets of rims, but I'm chalking it up to bad luck.  From 2005-2011 I used either the 355 or Crest rim from Stan's with nary an issue.  In 2012 I ruined 5 total rims.  Bad luck or bad product?  I don't know, but since that bad streak I'm back to pure gold with them.

Here's the beauty of the stock Crest wheelset: for $530 you get a 1575g claimed (we've measured them to be far lower, but never higher) wheelset which shaves a full pound from the stock Felt CX3R wheelset.  The Crest internal rim width is 21mm vs the stock wheels roughly 17mm width, which means much better grip from your tires.  If you aren't familiar with why wide rims are better, check here.  The final HUGE bonus?  Tubeless compatibility. 

I'll cover the swap more in an upcoming post, but there is one positive that's coming close to being a negative: the wide rims have turned my Clement Crusade PDX 33 tires into a 37c monster!  The grip is out of this world from a knobby 37c CX tire, but clearance is an issue.  The fork is fine, tons of room.  The rear seatstays are begging a 40c tire, but the clearance around the chainstays is tight with a tire this big.

The driveside chainstay on the F65x with the 33c tires and Crest rims is about 5-7mm or so.  Clearance on the non-driveside chainstay is about 4mm or so.  I'm fine with the clearance on the driveside until it gets really nasty, but it's close on the non-driveside.  Of course, the bike comes stock with 32c tires on standard-width rims and offers ample clearance.  It's not until you really push into a tire that's measuring over 37mm that clearance is even something to look at.

There are a couple of solutions to this:

1. Ride away.  I gave the bike a few hard corners and a number of over-geared road sprints and never got the tire to rub.  The photos make it look slightly worse than it is, but so far it's been fine.
2. Run a 32c tire.  There are plenty out there, but the PDX is a favorite of mine.
3. Stan's probably has the best solution, the Iron Cross wheelset.  Coming in about a mm more narrow, I think that'll offer the breathing room to make me feel just fine about running this wheel/tire combo on this frame.  Plus, the name Iron Cross is just so damned good, you know!?

Tubeless setup with the Clement PDX, though not necessarily endorsed by Clement, was a breeze.  Literally, mount one side of the tire, toss some sealant in, mount the other side, inflate.  It was as fast as installing a tire with a tube.  Now you can run lower pressure without worrying about a pinch-flat, get better traction, and severely reduce the likelihood of a flat.

There you have it.  Disc CX is here and it's awesome.  Review on the performance from the brakes and the wheels are coming soon.  Until then, act now and get a disc CX bike.  Before you know it manufacturers will have tons of wheel options for tubeless and tubular, the brake options will be plenty, and you'll wonder why we didn't make the transition sooner.....damn you UCI!

Recent Niner Builds

Air9 Carbon RDO with Shimano XT/XTR, SID XX World Cup, NoTubes Crest, 

Niner/Thomson cockpit

Air9 Carbon with Shimano XT, SID XX, NoTubes Crest, Niner cockpit

EMD9 with Shimano XT, SID XX World Cup, NoTubes Crest, Niner/Thomson cockpit

EMD9 with Shimano XT, Niner Carbon fork, NoTubes Crest, Niner/Thomson cockpit

Niner Jet9 Carbon RDO with Shimano XT, SID XX World Cup, NoTubes Crest, 

ENVE/Thomson cockpit

Niner Jet9 Carbon RDO with Shimano XT, SID XX World Cup, NoTubes Crest, 

ENVE/Thomson cockpit

NEW BIKE DAY! Niner Jet9 RDO with Shimano XT

I'll cut to the chase: 23.7 lbs without pedals.  Now, get the details.

Builds like this just don't come along that often.  It's not every day we get to build the dream bike of a seasoned mountain biker.  When we were asked to build a Jet9 RDO, I was nervous.  Back order lists are incredibly long, this one was ordered the first week of December.

Once the frame had been acquired, everything else was easy.  The frame received a SID XX World Cup 100mm fork with a 15mm thru axle and Cane Creek headset.

The build kit was simple: full Shimano XT.  Every time I ride it I become more and more impressed with the quality of the shifts, but more-so the braking.  Best braking I've ever used.

Wheels where another spot where we knew exactly where to go: Stan's NoTubes.  The stock Crest wheelset came to use 30g LIGHTER than advertised and perfectly round and true.

Thomson post and silver stand-in stem to be replaced with the correct size (and color) once the fit is dialed.  EDGE carbon bars, ESI grips, Maxxis Aspen 2.1 tires set up tubeless.

New Build: Stan's NoTubes Flow to Chris King Mountain Wheels

These are a truly special build.  Working in a shop, especially a shop that's lucky enough to build some really great stuff, opens your eyes to some great possibilities.  When the chance came up for Ben to pick up a new Yeti ASR7 he wasn't about to clad it with shoddy parts.

Many of the shop employee builds are dreamed up but toned down once it comes time to buy parts.  This time though, Ben took his time to build the perfect bike.  The perfect bike needs the perfect pair of shoes, and Ben outdid himself here.

Starting with Chris King hubs is always a good idea, especially when they are gold.  The front is the oversize 20mm thru-axle version of their 6-bolt disc hub.  King makes two versions of their front disc hub for thru-axles.  The oversize version is ready for 20mm or 15mm thru-axles, but is slightly heavier than the standard hub shell.  Though, the standard hub shell won't accept 20mm axles, which Ben needed in this instance.

The rear hub is set up for a 12mm thru-axle, though it still includes the Chris King "buzz" these hubs are so well known for.  I was recently anointed into the world of thru-axles on the front of my Niner, I can only imagine the stiffness the rear of this bike will have with a thru-axle in the rear hub as well.

Ben went with NoTubes Flow rims, an excellent choice.  The Flow is a relatively light rim, but extremely burly.  It also offers plenty of stiffness, but more importantly is extremely wide and should offer up top-notch tubeless compatibility.

Set up with yellow rim tape, these should work well tubeless and set up easily.  The NoTubes system is the best I've worked with so far, but with a number of other systems popping up we can hope they'll get even better with time.

Gold alloy nipples finish off this build.  It's more likely that if we were building for a customer we would have used brass nipples for their strength, but with a full-service bike shop at his disposal every day and the ability to fix just about anything, alloy nipples will most likely work just fine and will of course look the part.

New Build: Stan's NoTubes Crest 29 to DT Swiss 240s Mountain Wheels

When an email came in for a new Niner Air9 Carbon, I knew special wheels were needed.  This bike is going to a great home that already has a beautiful Independent Fabrication SSR that we built a while back.  That SSR is sporting some DT Swiss wheels we built (not pictured), and since the rider was so happy with them the natural choice was 240s hubs for this new build.

Actually, lets check out this IF SSR.  Custom paint all over, tons of little custom touches, Super Record:

Now you see where we were starting and why these wheels needed to be something nice.  The choice of a rear 240s hub is simple.  DT Swiss engagement and quality are well known, there's no debate there.  The front 240s hub is also a perfect match for the SID XX fork since it has a 15mm Maxle thru axle.

The wheels were built with DT Swiss Competition spokes laced 3x all the way around.  Competition spokes offer light weight and excellent durability and stiffness.  DT Swiss ProLoc black brass nipples were used to match the black theme and to provide a solid base to work from.

Rotors are Shimano IceTech XT, which in my opinion are setting a new standard.  I've never used a brake set that was so powerful and so functionally flawless.  They are a little heavier than some of their counterparts, but will more than make up for their weight with their unbelievable performance.

Cassette is also Shimano XT, an 11-36.  Wide range cassettes have opened the door to 2x10 drivetrains and Shimano has provided on that front.  With excellent shifting and a light action, XT shifting provides great feedback without too much effort placed on your thumbs.

The bare wheelset came in at 1,580g, about 30g lighter than I expected.  Always a welcome surprise!

Another ride in the books on my 2012 Niner EMD9 ....

Lumberjack is only 8 weeks away at this point, and today wrapped up a pretty big (for me) 3-week training block.  Building from 10-11 hours per week up to a high of about 16 this week, I was lucky enough to get a really nice chunk of those hours on single track.

It's pretty incredible how great the trails are right now, especially Palos.  This time of year we're usually sitting around grumbling about how the trails are closed because they are too wet, but after a few trips to the trails I'm psyched about how dry they are.

This weekend as well as last weekend were about as good as they get, today had only 3-4 spots of mud in the 55-ish miles of trail I traveled.  Anyone who has hit Palos in the spring knows the lack of mud in April is very welcome.

After these three weeks I'm ready for a little time off of the bike.  A couple of rest days thrown in this week, maybe even a massage, will hopefully leave me ready for another big weekend next week.

After about 5 weeks of training on this 2012 Niner EMD9, I'm in love.  While the lust for carbon MAY overtake me before Lumberjack hits, this is the perfect bike to train on.  The least expensive frame in Niner's lineup means I don't have to sweat a dent or scratch the same way an AIR9 Carbon would probably bother me.  It's light enough, it handles very neutral, and is an absolute rocket.

If you want to get into a Niner, or maybe you've been riding a 29er but want to go with something new, this is it.  The EMD9 has a tapered head tube for perfect steering, and comes out of the box finished like all Niners: faced and reamed head tube, faced and chased bottom bracket, and faced disc brake mounts.  This may not mean a ton to you, but it means quality and time savings to me.

Niner has the geometry dialed, their fit and finish is second to none, and their pricing is hard to beat.

OK, enough of the sales pitch.  Go ride your bike.

On test: 2012 Niner EMD9

It's no secret I've been a fan of 29ers for quite some time.  My first one dates back to roughly 2006 with a Salsa Mamasita, and I was instantly in love.  That bike was built with an entry-level REBA, X9, and some cheap wheels.  I can't say I remember for sure, but I'd guess it was north of 27-28 lbs.

29ers have changed quite a bit since then.  I'm still riding alloy, though I've ridden plenty of titanium and carbon since then.  At the end of the day, I have a tough time faulting aluminum for it's killer price point, relatively light weight, durability, and great looks.

For 2012 Niner has updated the EMD9.  It may be their entry-level frame, but the specs are right.  It's ready for a tapered steerer tube, which I took advantage of with a SID XX fork.  The standard 73mm English bottom bracket was a welcome spec as I was planning a the use of Shimano cranks.

Like all other frames from Niner, the EMD9 came out of the box perfectly prepped.  Bottom bracket threads were tapped, the bottom bracket and head tube and rear brake mount had been faced.  All great touches that save us a ton of time.

The finish on the frame is a really nice semi-matte black with white logos.  Totally understated and certainly my style.  Add in a few orange touches and this becomes the perfect Iron Cycles team mountain bike, which would explain the abundance of them on our team.

Specs on this build:

Niner EMD9 frame, black, large
Rock Shox SID XX World Cup tapered fork, 15mm Maxle
Shimano XT drivetrain
Niner RDO carbon seatpost
Thomson Elite X4 130mm x 0* stem
Niner RDO carbon handlebars
Fizik Aliante custom saddle
Stan's NoTubes Crest wheelset, XTR 15mm front hub, PowerTap rear hub
King Cages stainless cages
Maxxis Aspen tires

In the first week of having this bike built, I've logged roughly 8-9 hours on the trails.  Comparing this to the Air9 Carbon I recently rode the EMD9 performed admirably.  The AIR9 Carbon's head tube MAY be a hair stiffer, and the BB junction MAY be a hair stiffer, but in all the EMD9 was right on par with the AIR9 Carbon at roughly 1/3 the price.  The EMD9 does give up to the AIR9 Carbon in the weight department, but this built built to only be 2 lbs heavier with a heavier gruppo on it as well.

One worthwhile upgrade that I can't recommend enough is the 15mm Maxle fork.  Be it a suspension fork or a rigid one, if you have the option to run a 15mm Maxle, DO IT!  The stiffness increase was immediately apparent and totally welcome.  The weight penalty is minimal, and is more than made up for on the first rock garden or errant root you come across.

I plan to put plenty of trail time on this frame and fork, and I'll be sure to report back often on it.  So far, I'm blown away that a frame that retails for $550 can be so good.  Yes, it's aluminum, so it may not be as sexy as the newest carbon offerings.  But the weight is reasonable, the ride quality is great, and the price is nearly impossible to beat.

Time to get out and ride some more....

Niner EMD9 w/ 2012 Shimano XT

This one was a pleasure to build, because well, it's mine.  I previously had built an EMD9 but it's since been sold.  I loved the frame enough that I just replaced it with an identical one.

For the first time for me, I decided to build it with a Shimano build kit.  I spent some time chatting with some mountain biking friends who do some "real" riding, you know, in the mountains.  The consensus was easy to gather: Shimano XT brakes are the best.  I heard from many of them that XTR works just as well, but at a far higher cost.

Since I was going with XT brakes, I stuck with the full XT kit.  Shifters, derailleurs, cranks, chain, and cassette are all XT.  The fork is a Niner carbon unit, bars and post are also Niner carbon, the post is the RDO version.  The stem is ole faithful, a 130mm Thomson X4.

Wheels were hand built Stan's NoTubes Crest laced to DT Swiss 240s 6-bolt disc hubs with DT Swiss Revolution spokes 3x and DT Swiss ProLoc brass nipples.

Price as built?  $3700 out the door for a pure-bred race bike.