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Though its innovative climbing frames have now spent dozens of years at the top of the GT leaderboard, Pinarello's endurance machines have received no less R&D attention. The Gan K Disc Ultegra Complete Road Bike proves this point by also proving that the venerable Italian firm has no interest in leaving the long distance cyclist in the lurch.
The Gan K Disc's racing pedigree surfaces in the precise carbon fiber construction and Shimano Ultegra drivetrain (including the Ultegra 68000 crankset—no third-party slop here) and Ultegra-grade hydraulic disc brakes. The endurance aspect is apparent in the frame's all-terrain geometry and the inclusion of hydraulic disc brakes. When these attributes are combined, the result is a bike that loves to go fast all day.
Though it's a stiff beast, the Gan K's as focused on comfort as it is on efficiency, a fact that manifests in its geometry. Compared to the Gan S, the Gan K has slacker seat and head tubes, longer chainstays, comfort-oriented FlexStay seatstays, a shorter reach, and a taller stack. These variations are all subtle—manifesting as millimeters or even fractions of millimeters—but the net result is a longer, more stable wheelbase and a cockpit that situates the rider in a more upright position.
The Gan S is largely modeled on the Dogma F8, so it's a race bike, through-and-through; the changes to the Gan K mean it's less of an unforgiving missile and more of smooth rouleur, a bike built for laying down miles of tempo across rolling terrain rather than punching the afterburners out of every corner and into every ascent. The Gan K doesn't twitch violently at every rider input; rather, it flows through corners and across rough roads, holding lines as though it's self-guided. These tendencies are reinforced by the front and rear thru-axles, which reinforce the wheel/frame interface, an area that's traditionally guilty of sacrificing handling and power transfer through flex.
For all that comfort and stability, the Gan K is still built by one of the world's premium bike brands, so it benefits from all the race-frame expertise that Pinarello dumps into its world-beating Dogma models just with a lower grade of carbon fiber. Comparing it to the Gan S again, the Gan K features T600 carbon instead of the S model's T700. That lower modulus means that it takes slightly more material to hit the same level of stiffness, which means a little added weight.
Frankly, most of us won't even notice the extra grams, especially considering that the slightly beefier construction dissipates more road noise and gravel chatter while benefiting bigger riders who dump more punishment into the pedals. That rider profile is also the kind who benefits most from the improved modulation and more confident stopping power of disc brakes. No top-tier climber ever wants to hear the "added weight" disclaimer, but if you're after a long-suffering frame that ensures you aren't subject to long bouts of suffering during interminable stretches on questionable surfaces, frames like the Gan K are a beacon of hope in a sea of unforgivingly stiff featherweight frames.
Finally, a note on bottom brackets. We know you're weary of trying to keep up with the latest trends and standards. Hell, we are, too. For all its innovation and forward-thinking design choices, Pinarello remains decidedly low-tech in the bottom bracket shell. The Gan K Disc features an Italian threaded bottom bracket, which forgoes the lighter and less expensive method of molding PressFit recessions into the frame in favor of CNC-machining inserts. The result is a more precise interface that reduces creaking and pops while simultaneously increasing the longevity of all parts involved.
- An endurance road bike with racing pedigree
- Long wheelbase and a generous stack for stable comfort
- Burlier carbon fiber is stiff but absorbs road noise and abuse
- Ultegra build kit is raceable and reliable
- Pinarello's carbon fiber expertise has been proven in everything from spring classics to grand tours
- Item #PIN003E
- Q & A
A nice stable ride.
- Familiarity: I've used it several times
This is definitely a longer wheel base and slightly heavier bike than my previous Diamondback Podium 6 and on my first ride I felt it. That said, it definitely is a more comfortable and stable ride over the imperfections of the road; train tracks, etc. i’m Pretty amazed at how well the bike absorbs that stuff. Decents are pretty awesome on this bike and comfidence abounds. I feel a bit heavy on the steep climbs but with the new geometry i realize i need to let my body get acccustomed to this new ride of mine. I really like the disc brakes and through axels. I also like the way this bike looks. Pinarello definitely knows how to make an aesthetically pleasing road machine. I will try to remember to come back and re-review this bike in a couple months and a few hundred more miles. I would give this bike a 4.5 if i could but i only had the choice of 4 or 5, so i rounded up to 5. My only issue with this bike is it feels a bit heavy on climbs. I hope my body gets accustomed to the new geometry and it feels more efficient on the climbs soon. Lastly, a shout out to Michael and the Competitive Cyclist crew. This purchase felt almost like a local shop purchase because Michael followed through with this sale from beginning to end and provided all the information I needed to pull the trigger on this bad boy.
Perfect combination of speed and comfort
- Familiarity: I've used it several times
Fantastic bike. Very easy to get going fast. Maintains the speed nicely. It is very stable on descents. Pretty comfortable ride. I wrote a more detailed review on my blog: http://www.veloxl.com/2018/01/pinarello-gan-k-disc-review-first.html
- Familiarity: I've put it through the wringer
Amazing bike, easy to set up and ride. Noticeably much more comfortable compared to my old by ride. I felt less beat-up after a long ride (50 miles). Scott was great! He got me in the right sized frame and kept me updated on the build and shipping details.
Killer Road Bike, Convertible to Gravel
Solid spec on a great road bike. Tire clearance can be up to 38mm depending on the exact wheels and tires, safe to say that anything up to 35mm would easily fit to convert this bike into a great gravel/allroad bike.
Can fenders be installed?
Yep! Theres fender mounts front and rear.
PINARELLO GAN K DISC ULTEGRA COMPLETE ROAD BIKE - 2017
My height is 167cm and inner leg is 79cm. I am a female. Would you suggest the 44cm or 47cm bike please?
how much assembly is required?
what are the chances to get it at 50% off?
All you need to do is install the wheels, handlebars, and the seatpost, and thats it! Unfortunately price isn't going any lower.
Guess on max tire size for this bike?! Thanks!
Pinarello recommends a max of 25c, I'm sure some experimenting with some 28cs may result in positive results, but manufacturer can only guarantee 25c.