Crank Brothers Kronolog

Adjustable seatposts have become a staple in mountain biking, especially for all mountain riding. Since crankbrothers has been in the adjustable seatpost category for nearly five years, we have learned a lot about what works and what doesnʼt. With that knowledge, we decided it was time for a better approach. With a fresh set of eyes, we designed a post that we believe in. It is technical, durable, and beautiful. We consider it to be the eggbeater of the adjustable seatpost market. Introducing the kronolog.

Through our experience in the adjustable seatpost category, we have learned that the main source of failure is an overcomplicated design. Hydraulic posts are heavy and problematic, so we took a different route. We wanted to create something simple, and it became clear that a mechanical design was optimal for an adjustable seatpost. The kronolog was developed over a two-year process that included extensive design, development, prototyping, testing, redesigning, retesting, etc. The post went through ten design iterations, and even more when you include incremental changes. Through the process, the post was extensively tested both in the lab and on the trail. Crankbrothers even developed proprietary testing fixtures to truly push the post to its limit. We were dedicated to getting this right—and we think we did.

The kronolog is a fresh new design with many unique features:

robust simplicity / The kronolog is a very simple design, with a limited number of functioning parts. Fewer parts means fewer failures. The kronolog passes 2.7 times EN fatigue testing, making it twice as strong as other posts on the market.

mechanical design / The mechanical design allows for very accurate, precise movement. The kronolog is the only mechanical post that is infinitely adjustable.

hydraulic feel / Although it functions mechanically, the kronolog feels hydraulic. It is smooth, supple, and quiet.

air spring technology / The air spring technology allows you to adjust the preload and return speed simply with air using a standard shock pump.

two-stage damping / Air damping allows the saddle to return to a normal riding position in two, smooth stages.

rotational stability / The unique keying system between the quill and shaft virtually eliminates rotational play.

two-way locking / The seatpost locks into position both upward and downward. Pull up on your saddle, and your seatpost stays in place.

improved cable routing / The cable routes from the postʼs stationary body, so when the post moves up and down, the cable does not move. No excess cable to interfere with your riding.

travel adjust / It is possible to reduce the travel of the kronolog in 20mm increments by simply adding a spacer.

remote adjust / The kronolog remote attaches to the handlebar using a standard handlebar clamp, and can be configured for either right or left hand control.

stronger and lighter / the kronolog seatpost offers more travel, durability, and robustness, all at about 50g less than the previous crankbrothers adjustable post.

technical details

material aluminum

post length 405mm

weight 465g + 28g (30.9mm + remote)

adjustment range 125mm/5in

adjustment type remote w/ standard shift cable in 4mm brake housing

diameters 30.9mm & 31.6mm

standard colors black & red, black & black

color kits clamp & lever kits available in gold, blue, orange, red, black (sold separately)

warranty 2 years with proper maintenance

rrp £249.99

Find out more about the kronolog here

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