WE DIG
WE DON’T
ABOUT THE FAIR BICYCLE DROP BEST UC
The Fair Bicycle Drop Best comes in a few versions to fit your seatpost of choice. Here we are using the Drop Best UC M6 version, which fits my V2 240mm OneUp dropper post, in addition to many other models. Their website makes it easy to figure out what you need to make it work with the seatpost on your bike.
Adjustability is the whole point here. You get totally independent saddle angle and fore/aft position adjustment, offering 27mm of forward or rearward offset. This produces an effective seat angle adjustment of about 2 degrees (shifting from 76 to 78 degrees at a 680mm seat height, for example). It allows for roughly +15 to -15 degrees of saddle tilt at a 72-degree seat angle, too. Five included spacers let you lower or raise the post’s stack height, or if you’re the type to run some truly extreme saddle angles. The stack height adjustment can be used to match your original seat post exactly, if that’s desirable.
The big compatibility pitch checks out on paper. The single clamp handles every common saddle rail out there: 7mm round, 7x9mm oval, and 7x10mm oval, with no extra parts needed. And because the design is fully modular, an additional hardware kit extends it well beyond M6 posts: think M5-bolt posts, proprietary one-bolt-upside-down carbon road posts, Fox Transfer 2021 (and its Race Face derivatives), plus the Fox Transfer 2025 and wireless Transfer NEO. If you’re unsure whether it fits your post, FAIR even lets you download and 3D print a dummy to physically test the fit before you buy.
There are a few caveats worth knowing. Your saddle needs to measure at least 16mm from the top of the rail to the lowest point of the central shell, and softer saddles can contact the clamp under hard landings. A short list of odd-shaped saddles won’t play nice, which you can check against the DROP BEST compatibility chart. Saddles with rails that narrow quickly after the clampable area can also limit the achievable offset, though FAIR notes this is rare and invites you to reach out by email if in doubt. Finally, it is not compatible with stick-through-the-clamp designs like the Wolf Tooth Resolve and similar posts.
The construction is pure Swiss overkill, in the best way. Machined from 7075 aluminium throughout, with 12.9 grade US-made fasteners, and high-end Swiss coatings for corrosion resistance. It’s precision-machined in Switzerland and independently ISO tested in Germany to MTB standards and beyond.
On the scale, the DROP BEST UC M6 comes in at 139g in total, roughly 64g heavier than an average dropper post saddle clamp, and up to 174g in its heaviest configuration. Yes, that’s heavier. But get your seating position sorted and, as FAIR puts it, your bike feels a whole lot lighter at the top of the climb.
FAIR also leans hard into doing things the right way. The DROP BEST UC M6 is manufactured only in countries with strong environmental and labor standards, meaning health insurance, paid holidays, and proper wages. The full product plus its packaging is fully circular at end of life. You can dig into their fair trade and circular economy breakdowns for the full picture.
When all is said and done, the Fair Bicycle Drop Best retails for $146.
THE DIRT
SETUP | Upon opening the box and seeing all the pieces, I initially felt overwhelmed, even as a pretty competent home mechanic. Looking at the instructions had me worried that installation was going to be complicated, however once I started the install, everything came together very easily. The instructions are overkill, which is not necessarily a bad thing, but the fitment process is fairly straightforward.
The saddle angle is adjusted separately from the fore and aft movement of the saddle. Once the saddle angle is set, installing and removing the saddle is much easier than the stock clamps, thanks to the bolts being on the side and not underneath next to the dropper’s main shaft.
My saddle of choice is the SQ Lab 60X. When first installing, I found that you can not fully slide the saddle to the very forwardmost position, due to the clamp hitting the polymer damping piece. The position I was able to get it to was still significantly more forward than the stock clamp, but I wanted to maximize the forward position. Swapping to a more traditional saddle, the dream saddle position I sought was possible.
IN USE | With this being installed on my Specialized Stumpjumper EVO – a bike I have spent countless days climbing on – it was immediately noticeable how much better of a seated position I was in. Having such a tall required saddle height and preferring 30-33% suspension sag, the effective seat tube angle on most bikes feels too slack for me. I moved the Drop Best-equipped seatpost around a few different bikes, and only had good results. Most recently, I tried it on the Pivot Trailcat SL, a bike I overall like very much aside from the slack seat tube. With the Drop Best, that bike went from one that left me way off the back over the rear axle, to a comfortable climber that I gravitated to.
Sure, the Drop Best does look a bit strange. However, this odd look is more than made up for by its performance. At first, you might think that this extreme position would make the dropper harder to compress, but at least anecdotally, I did not find any perceived difference. Hell, it could even make it easier to drop due to a reduced bending moment on the post.
Having the saddle further forward on the downs was something I noticed on my first few rides, but it never presented an issue and was something I happily adapted to. It is not something that has crossed my mind since those first shakedown rides, talking to its unimportance.
FINISH AND VALUE
In the world of Bicycle upgrades, I consider the value of the Fair Bicycle Drop Best to be very good, as a long-legged rider seeking to steepen the effective seat tube angle. It has been a product I have recommended on numerous occasions, as it makes a significant improvement. The quality of the parts is top-notch; everything fits together as it should, and it does not introduce any new play or creaking from the clamp area. I tightened it once when installing it, and have yet to make any additional touch-ups over the course of more than 8 months. Of course, it’s an expensive little piece, but invaluable in improving seated comfort.
The Wolf’s Last Word
If you know, you know. It is not for everyone, and is not marketed to be. This is an amazing asset for riders with long legs, but also for those who may have a bit of an older bike they are still in love with, and want to bring the seat tube angle into this more modern range. 
Price: $146 – $171
Website: Fairbicycle.com
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ABOUT THE WOLF
Cole’s den is in Spokane WA, where he relocated a few years back. Growing up in the lush, loamy playgrounds of the PNW, his soul is forever tied to steep, rooty descents and that unmistakable squish of perfect dirt. After 19 years of shredding, Cole’s been on every kind of rig out there. Once a die-hard fan of big travel bikes, he’s now on a quest for the mythical short-travel do-it-all machine. And yes, skids may be for kids, but this middle-aged manchild is here to prove they’re also for anyone who loves having a damn good time.
Rank: Professional Amateur
Size: 6’1” / 185cm | 170lbs / 77kg
Social: @adventuresbycole
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