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FAIR Bicycle Drop Best Reverb Offset Saddle Clamp alters setback and effective seat angle

fair bicycle drop best 27mm offset saddle clamp rockshox reverb dropper post
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FAIR Bicycle have launched with their debut component, the Drop Best, an offset saddle clamp for RockShox Reverb dropper seat posts. What does it do? It replaces the regular Reverb hardware with an offset saddle clamp that allows you to shift your saddle 27mm forwards, or 27mm backwards, steepening or slackening the effective seat tube angle by ~2°. Here’s everything you need to know about the FAIR Bicycle Drop Best.

FAIR Drop Best Reverb Offset Saddle Clamp

fair bicycle drop best 27mm offset saddle clamp rockshox reverb dropper post

First, let’s put this rather niche component into context. Why would you want to alter the effective seat tube angle of your bike? Let’s take a relatively tall rider, on a full suspension bike with a 76° seat tube angle, as an example. That’s a 76° effective seat tube angle at 680mm seat height with your RockShox Reverb dropper seat post at full extension for seated climbing. 

The seat angle is so slack that you feel like you’re hanging off the back, hovering above the rear axle. You struggle to ride up steep technical singletrack because you’re fighting to keep the front wheel on the ground. Your saddle is already as far forward as it can go on the rails. To push it further forward would be to ride it outwith the indicated limits on the rails. Where do you go from here?

Until now, the solution was to simply buy a new bike. One with a steeper seat tube angle that, at seated pedaling height, placed your hips further forward on the bike. A pretty costly solution, right?

fair bicycle drop best offset saddle clamp rockshox reverb dropper

Swiss components manufacturers, FAIR Bicycle, have debuted with a much more budget-and environmentally-friendly solution to the problem. It’s an offset saddle clamp that can shift your saddle forwards or backwards by 27mm, depending on your preference. It only works for RockShox Reverb droppers, though (for now, at least). All models except the electronic AXS one, that is.

kona with rockshox reverb and drop best offset saddle clamp

The FAIR Bicycle Drop Best offset saddle clamp simply replaces the Reverb clamp hardware, and still allows riders to tune the saddle tilt as normal. Shifting the saddle forward by 27mm at a saddle height of 680mm on a 76° seat tube angle bike, steepens the effective seat tube angle at that saddle height by 2°. That could be all that is needed to shift your hips forward on the bike, allowing you a more comfortable and efficient pedaling position (and one in which you aren’t constantly on the edge of pulling a wheelie up hill).

drop best offset saddle clamp fair bicycle

At the other end of the spectrum, you might find that the 80° seat tube angle on your Privateer 161 is just a little bit too new school for you (unlikely, because steep seat tube angles rock). Running the Drop Best in the -27mm position can slacken your effective seat tube angle back by ~2°. Cool, right?

We really like the concept. While light riders will more than likely get away with slamming their saddle forward on the rails of the standard Reverb clamp, beyond the recommended markers, heavier riders approaching the saddle’s maximum weight limit probably won’t. This would certainly invalidate the warranty, either way.

fair bicycle drop best -27mm saddle clampoffsetWe quizzed FAIR Bicycle on this point, asking if use with the Drop Best would invalidate saddle warranty. “We do not know specifically. What’s most important though, is that our clamp design does not exert any more or other loads on saddle rails compared to similar clamp designs (basically all that feature side clamps, typically Bontrager, Reverb AXS, 9point8 etc.)” – Marco Giarrana, Founder of FAIR Bicycle.

The cool thing about the FAIR Drop Best is that it can be used with 7mm round rails, 7x9mm oval rails and 7x10mm oval rails, all with the same clamping jaws. It is compatible with steel, titanium, aluminium and carbon rails.

fair bicycle drop best cnc machined offset saddle clamp for rockshox reverb not compatible with axs

Drop Best is precision machined in Switzerland from high strength 7075 aluminium. While stock Reverb hardware weighs a 74g, the Drop Best clamp weighs a claimed 125g, so there is a 51g weight penalty to deal with. A small price to pay.

Pricing & Availability

The Fair Bicycle Drop Best Offset Saddle Clamp retails at $118 USD, £85, $145 CAD and 99€. It is available now direct from FAIR Bicycle only.

For now, only the +/- 27mm offset is available for RockShox Reverb posts. FAIR Bicycle say that if Drop Best is well received, they will look into producing offset saddle clamps for other models of dropper seat post.

FAIRBicycle.com

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Dylan Sutton
Dylan Sutton
1 year ago

Oof, the leverage on the rear bolt with the saddle in the forwards position is something extreme. This is going to save the saddle rails at the expense of the seat post if you case something and land hard on the saddle.

It’s a niche solution, and people have been turning their setback seatposts around for decades to accomplish the same thing.

If you bought a bike that’s too long for you it might be pretty good, but if your bike is a good size in stock configuration you’re not going to end up with “new school geometry”, just a pedaling position like T-rex.

FAIRbicycle
1 year ago
Reply to  Dylan Sutton

Dylan
That’s correct, the leverage is quite high. But this has been tested both in the lab, at one of Germany’s leading test labs in a worst case scenario, offset to the front and load applied on a point way forward on the saddle. It passed even after the full fatigue test done before.
Also, we have cased hard, in the real world, many, many times, wearing full lower protection. Landing on the saddle nose. With all kinds of saddle rails, steel, ti, carbon…We haven’t broken a saddle or post yet.
Thanks for your comment, of course DROP BEST is not meant for people with a bike that fits them in stock configuration. Rather for those who need to adjust their position and have a dropper installed (a Reverb that is).

fairbicycle
fairbicycle
1 year ago
Reply to  Dylan Sutton

No one wants a pedaling position like T-rex 🙂

bobby1ma
bobby1ma
1 year ago

Clever solution!

moraucf
moraucf
1 year ago

I would buy 2 on the spot if it worked for my droppers (one-up). A lot of people have been begging for a forward offset option with at least 170mm of travel.

fairbicycle
fairbicycle
1 year ago
Reply to  moraucf

Thanks for that feedback! We are looking into this. It’s hard though, with ALL these different droppers. But OneUp is requested a lot.

fr0hickey
1 year ago

Another use case is for short riders needing more standover distance from the bike. A zero setback seatpost and a long-nose saddle would push the rider towards the front where there is less standover (top tube is touching the private areas). With a 25mm setback seatpost and a short-nose saddle, the short rider can be straddling the top tube closer to the seat tube, where there is more space.

Kiwi Pete
1 year ago

At last I can get the saddle backwards to get over the pedal’s instead of in front of.

Bre Rue
Bre Rue
1 year ago

What a great concept! I hope you do well with it, well enough to make one for AXS with an SL version too!

fairbicycle
fairbicycle
1 year ago
Reply to  Bre Rue

Thanks Bre Rue!
We hope so too. The biggest problem (to be commercially successful anyways:)) with this product is the 199 different droppper brands out there…

Alex
Alex
9 months ago
Reply to  fairbicycle

I have to agree with Bre, making an RS AXS compatible product is a necessity. This would actually be incredible with the RS Reverb XPLR AXS dropper because many of the gravel bikes out there run various axle to crown that if you were to remove the fork for a new gravel suspension fork, whether it be the Fox 32TC or RS Rudy XPLR, it will make correcting the seat angle because of the axle to crown change an easy task. Especially with gravel bikes going the way of suspension, this would be an amazing match to the RS Reverb AXS droppers

Davis W
Davis W
1 year ago

I need a little more setback to run an ism seat on reverb and this would be a great solution but I have the axs version. Any news on the potential axs clamp?

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