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Home > K2 Mainframe 5.0 Road Bike (700c Wheels, White, Large)
K2 Mainframe 5.0 Road Bike (700c Wheels, White, Large)

Average Rating: 4 star rating (1 Reviews)

     
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Product Description: 
Product InfoFinally, the Mainframe 5.0, a carbon road bike that balances fit, form and function, the K2 bike way. Not only is this bike well balanced it has the agressive looks featuring a blue and white color scheme. Dual colored bar-tape to match the bike is the bike equivalent to a scarf. This bike is decked out with Shimano 105 compentents and other premium brand parts to turn this carbon frame into an affordable racing monster. While this bike is light and fast it is also a sturdy piece of recreational equipment and a wicked stylish commuter. Get your hands on this multi-purpose two-wheeler!SpecificationsFrame: MONOCOQUE FULL CARBON FIBER ROAD, PROPRIETARY K2 BIKE DESIGNFork: CARBON BLADES, AL CROWN & STEERER, RIDE QUALITY MATCHED TO THE FRAMERear Shock:Front Derailleur: SHIMANO 105Rear Derailleur: SHIMANO 105Shifters: SHIMANO 105 STIBrakes Levers: SHIMANO 105 STIBrakes: SHIMANO 105 DUAL PIVOT CALIPERS, 39-49mm REACHChain: KMC DX-10SC WITH REUSABLE LINKCrankset: SHIMANO 105 COMPACT (FC-5650)Cassette: SHIMANO HG 11-25Pedals: TEST RIDE PEDALS WITH TOE CLIPS Bottom Bracket: SHIMANO OUTBOARD BEARINGHeadset: 1 1/8" THREADLESS, INTEGRATEDSaddle: SELLE SAN MARCO PONZA LUX WITH HOLLOW CR-MO RAILSSeat Post: 2014-T6 AL, 2D FORGED HEAD, WITH MICRO-ADJUSTHandlebar: KORE ROAD RACEGrips: K2 BIKE DUAL-MATERIAL, STITCHED TAPE WITH WHITE MICROFIBERStem: K2 BIKE FIT SYSTEM BY NVO, COLD-FORGED ALTires: CONTINENTAL ULTRA RACE, 700 X 25cWheelset: SHIMANO RS10


Customers' Reviews: 
2 of 2 people found the following review helpful:
4 out of 5 stars.  Awesome bang for the buck..., March 30, 2009
My riding buddy just bought an 08 Closeout on a K2 Mainframe from REI. He scored it for $1099 in the Denver store. I also test rode it, and I was extremely impressed with the bike for the money. It was just as comfortable as the Specialized Roubaix, but actually accelerated much better. I'm a 295lb clydesdale, and I noticed no significant frame flex either. It muted cobblestones on the test course with ease.
The parts spec was awesome, for the money. It was a full 105 groupo, cranks, brakes, derailleurs, shifters, wheelset, and all. K2 didn't try to slide any lower groups, or no name parts anywhere into the mix. The only sub-par part on the bike was the saddle. It will be the first thing anyone will want to replace. Its a horrible piece of junk, with no soft-tissue relief whatsoever. It could pass as a medieval torture device. The stem and seat post are K2 branded parts, but they're not too bad. The handlebar is made by Kore, and its a bit skinnier feeling in your hand than I prefer, but $15 worth of gel tape would easily fix that. The stock bar tape is pretty ugly, so most people will want to re-wrap the bar right away anyhow.

For the $1099 price, he can easily afford to upgrade the saddle, post and stem to Thomson... and slap on a nice leather Selle Italia saddle. He'll still come in $300 cheaper than a similar stock, Specialized, Trek, or Cannondale.


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