Fair Bicycle has announced the Drop Best UC, a universally compatible version of their offset saddle clamp. It is a direct replacement for your dropper post saddle clamp, introducing 27mm positive or negative offset, dependent on how you orient it. It essentially allows you to steepen or slacken your effective seat tube angle to find a more comfortable effective top tube length and thus, seated pedaling position.
When Marco Giarrana and Valetin Wendel first launched the Drop Best in 2021, many riders were disappointed to learn it was compatible only with the RockShox Reverb Dropper Post. Now, almost any post that runs vertical mounting bolts (M5, M6 or M8 ) can be used with the Drop Best UC to adjust saddle position beyond the range permissible by simply sliding the saddle to either extreme. That applies to both dropper posts and some proprietary fixed posts found on road bikes - more on that on Velo.
Older bikes tend to have a relatively slack seat tube angle, and riders may well be looking to steepen their effective seat tube angle for a more comfortable climbing position. It can help give a more direct feeling to the pedal stroke, biasing your weight further forwards, something that can help keep the front wheel down on steep, technical climbs. I reckon the Drop Best could have been a good solution to the seat angle issues I encountered with the
Pivot Shadowcat.
There will also be a smaller contingent who find they'd like to slacken off their effective seat tube angle. Not everyone is a fan of the trend towards steeper seat tube angles, and for good reason. A shorter effective top tube length puts more weight through the rider's hands, which can be uncomfortable if you're pedaling for a long stretch along the flat, or if your local trails are more undulating. It certainly seems to be a trend that best services the winch-and-plummet crowd.
Whether you want a steeper or a slacker effective seat tube angle, the Drop Best UC puts an additional 2° of adjustment (fore or aft) on the table. That example is in the context of a 680mm seat height and 76° starting angle. Importantly, it allows for independent adjustment of saddle position and saddle tilt.
The Drop Best UC is machined from 7075 aluminum and weighs a claimed 139 grams in its lightest configuration. There is no specified rider weight limit, but it's recommended to stick with the posts maximum weight limit to be on the safe side.
Fair Bicycle don't offer an exhaustive list for compatibility, but it is fairly comprehensive, covering most of the well-known and popular dropper seat posts on the market. Most notable are the Bike Yoke Revive and Divine, Crankbrothers Highline 3, PNW Loam, SDG Tellis, Fox Transfer (2020, 2021 & SL), the RockShox Reverb and the OneUp V2. It's also sort of compatible with the OneUp V3, but the clamp does need to be filed down by 2mm - something we are told will not void your warranty. Fair Bicycle are already working on a better solution for the OneUp V3 post.
Those with access to a 3D printer can check compatibility themselves, as Fair Bicycle have an .stl file available on their website for download, so you can print a sample clamp.
For MTB, there are three versions of the Drop Best UC. One is for use with M5 bolts, the other for M6 bolts, and the third is for the 2021 Fox Transfer. The only difference between them is the hardware kit. Fair Bicycle also sell the specific hardware kits separately, for those who want to switch the Drop Best between posts. Pricing starts at $134 USD / $182 CAD / 125 EUR / 125 GBP / 119 CHF. Clamps are sold with a lifetime warranty against manufacturing defects. Fair Bicycle will also offer Individual crash replacement solutions at cost plus handling expenses.
It might be minimal or nothing? Just interested really as, if I was interested in one of these, that would be my first thought...
If you are as slim as your username, you sure needn't be worries .)
Jokes aside: We were also concerned about this when we first started that project around 2020. We just didn't know. After all the DROP BESTs we have sold, we know that zero posts have been damaged. The general feeling we have, is that after initial failures, when droppers came up back around 2009/10, most manufacturers have invested in forging toolings and engineered very robust guide/pin systems. The only post that we had fail was in external lab testing, way above the MTB requirements and we could narrow this down to a manufacturing issue of the post itself, since multiple identical items passed the identical tests afterwards no problem. From a riding point of view we now have quite a vast experience abusing many different posts with a DROP BEST UC on them, and again, no failures.
There are lots of add-ons to bikes that manufacturers simply can't test because of the sheer volume of products.
The one issue I can see with this product is that it puts more load through the post head. Some posts used to break in this area (old Bike Yoke Revives, for example), so I'd at least not be willing to try this if I had one of those posts or if I were pushing the manufacturer recommended weight.
This is a GREAT product for people with long legs and to give new life to older frames. I could see how in some extreme cases that it "might" cause a bit more wear on your dropper post? BUT, I'd 10000% take a little extra dropper post maintenance over a bike that doesn't fit right... ANY DAY!!!
Not really related, but just thinking about how we ran those bent Thomson posts and rode frames that were too small back in the day to have a lighter and fast-handling bike! I'm going to size down on a hardtail for my next build to have a play bike for the pump track again that I can still ride greenways with the fam. So depending on what I end up buying, I'll be looking into this product to help get my pedal stroke!!
Thanks!
Just a quick thanks for the response. It's good to hear and learn something new! Best of luck with your endeavour!
But does it affect the seatpost's warranty? That's a pretty important question. And apparently a controversial one...
1) it is up to the customer to ask
2) you perfectly know that all manufacturer will say yes it void's warranty, because they usually don't want to lose money.
3) if your seatpost fail, you don't have to tell the manufacturer you were using this, so who cares?
4) FAIR Bicycles would get bad press eventually if people's dropper start failing left and right because of this, so the market would adjust.
We had the same thoughts when we launched the original DROP BEST. But we just launched it to see what happens. And it happened that many people are jumping onboard the train of riding their bike as long as possible (just like that famous & great patagonia ad: the best jacket is the one you don't buy). We are very happy about that and it gave us a green light to launch the development of the DROP BEST UC, which took about 4 years, as there are sooo many factors to be considered. As for the price: We could have made this somewhere, somehow and it would probably be 50.- But our believe is that we only source stuff from companies we would also gladly work at. That goes down to the US made standard bolts with Swiss coatings, to the cardboard box Made ins Switzerland from 100% Swiss recycling paper. Thanks for sharing your thoughts!
But educating consumers and creating a market niche and afterwards regulations and oversight is probably the only way to improve the status quo where prices are driven into the ground on the back of individuals. That's how i see it at least
The first generation YT Jeffsy from 2016 is an example, again particularly for long-legged riders who don't mind the still-moderate reach that much, or can otherwise upsize without running into seat tube length / standover issues.
FYI: It is possible to get any bolt made fair and eco, say in Germany, but you will need to buy at least 50'000pcs of each dimension. In case of the DROP BEST UC that means we would have had to buy around 500'000 bolts to stock all the dimensions needed. It's a difficult situation for small guys like us. We have literally spent weeks of work to find suppliers for all the hardware, which are made somwhere fair and willing/able to supply such a small outfit like us. Economics...not easy. But when we found them, it felt special and made it totally worth it!
I mean, for the price of that thing, you could get a saddle that brings the same improvements without having to customize (and adding weight & complexity) your current dropper post.
Just saying...
Thanks for the shout out re the podcast! Here's the link to the episode:
skidsandgiggles.com/podcast/ep76-marco-giarrana-fair-bicycle
Or find it on my pb blog.
Price on second hand 2019-2023 Scott Ransom should now increase with 30%
www.fairbicycle.com/product-page/drop-best?currency=EUR
Thank you for the good vibes!
Ordered one!
Looking at you @SDG-COMPONENTS (Still no I-Beam dropper in sight)
But really like the I-Beam concept too!
You absolutely CAN compare them: they are both seat post modifications. And since you can’t use both of them at the same time, it makes sense to compare them to see which one might be better for you. The switch grade was the first thing I thought of when I saw this…
All that to say: I definitely agree the two products compete. I don't think either one is objectively better, it's just a question of what you want to get out of your post-topper.
BTW: Despite having really short legs, I run my saddle slammed forward all the way from 2003 to 2019 on plenty of different bikes.
Funny the new plastic Decathlon trail bike is basically a 1:1 copy...
(On a side note - why do bike designers use the same seat tube angle on a size small and xxl? please fix this!)
@FAIRbicycle needs to make a toptube extender to move the fork 50mm forward and maintain the same head angle. maybe add in a stack adjustment while your at it.
looking forward to using the v2 drop best with a oneup post.
No worries, the TT extender is in the works, right along with the dropper stem!!!
All that being said…. Id still try it.
Plus optimize position for those who need it, and actually quite a bit of pros are trying it, companies using it to experiment with new geo for upcoming bikes etc.
We know how many hours and cost, but we try not to think about it, because cringe
Basically the only M5 posts out there are all Bike Yokes, Fox Transfer 2020 and older, Transfer SL and the Thomson droppers. For those you need to get a DROP BEST UC M5 or an M5 hardware kit to convert from a DROP BEST UC set for M6 or Fox F21. Everything else is M6. So for those you want a DROP BEST UC M6 or an M6 hardware kit to convert from a DROP BEST UC set for M5 or Fox F21.
The exception: If you have a newer Fox Transfer (2021 or newer, the one with the weird head), you need a DROP BEST UC F21. But also for these: You can convert them by getting an M5, M6, F21 or even a road hardware kit.
Sorry it's a bit complex, but that's because it is complex .)
The easier and faster you can present this information to buyers, the easier and faster they'll enter their credit card info
Sincerely, the world whose riding encompasses more than just sitting and spinning pedals.
That's regarding reach of course. I don't care too much about seated geometry for my riding and I don't know the numbers either. But I suppose the same applies. That said, the clamp in question allows you to tweak effective top tube once you're already happy about your reach and stack. So it does give you more options to make something work for you.
Does that make it any clearer? Modern bike sizing is JACKED! I've gone from upsizing in aboot 2007 when I got back in to MTB to now down sizing, sometimes even a small........
Yay bike industry
Thx!
During all those years since 2003 I just got along without something like this because I am lucky to have short legs...