DROP BEST UC F25 convex

Are you stuck in the middle with your dropper post?
Would you want a steeper seat angle for a more efficient climbing position?
Would you like some rearward offset to accomodate your long legs?

Whichever way you want to move, the DROP BEST UC F25 convex dropper saddle clamp allows you to do just that. With 27mm  of offset you can change your seat angle by 2º. Say from your current 74º to 76º. Or set it to rearward offset and slam the saddle right back. To create room for your Filippo *Top Ganna* Ganna legs.

SAFE.
High strength 7075 aluminum throughout. Strongest, 12.9 grade, US made fasteners. Swiss coatings for corrosion resistance.

EASY.
Totally independent angle and saddle position adjustment makes installation a childs game.

ADJUSTABLE.
Lower or raise your post’s stack height with the included spacers. Or use them to achieve extreme saddle angles (some riders are into that :) See a detailed compatibility chart here.

LOWER STACK.
Compared to the Fox standard hardware, stack height is reduced by 6mm! Compared to the Crank Brothers standard hardware, stack height is reduced by 9mm!

COMPATIBLE WITH ALL POSTS USING THE MY2025 FOX TRANSFER HEAD DESIGN. AND SOME MORE.
Compatible with every dropper using the MY2025 Fox Transfer head design (notably the regular Transfer 2025 and the Transfer NEO wireless posts). Also with Crank Brothers Highline 7 & 11 posts. For other posts using a convex interface, please get in touch!
And in forward or rearward offset use. And for most seat tube and saddle angles. See a list of possible settings here. If you are still unsure about the fit on your post, you can even download and 3D print a dummie to physically thest the fit here. DROP BEST UC F25 convex is compatible with all saddle rails: 7 mm round, 7x9 mm oval and 7x10 mm oval. No extra parts needed!

MODULAR.
DROP BEST UC F25 convex is fully modular: Beyond the adjustability via its five spacers, you can make your DROP BEST UC F25 convex work on almost all seatposts with vertical clamping bolts, just by purchasing an additional hardware kit: For posts using a concave interface and M6 bolts, M5 bolts and for proprietary posts using one bolt installed upside down (e.g. many high end carbon road bikes/posts) and Fox Transfer 2021 posts too.

LIGHTWEIGHT/HEAVYWEIGHT.
At 138g, the DROP BEST UC F25 convex assembly weighs 51g more than the original Transfer MY2025 saddle clamp. That's heavier. But at the top of the one hour gravel grind, your thanks-to-the-DROP-BEST-UC correct seating position will make your bike feel much lighter.

PRECISION.
Precision machined in Switzerland. High end coatings throughout.

FAIR TRADE.
Made as fair and eco as possible. In countries where everyone has health insurance, paid holidays and proper wages. FAIR bicycle informs as transparent as possible. Learn more here.

ECO-SENSIBLE & FULLY CIRCULAR.
This product and its packaging are manufactured only in countries with high environmental standards. Fully circular: All materials can continuously be recycled at their end of life. Including packaging. FAIR bicycle informs as transparent as possible. Learn more here.

INDEPENDENTLY ISO TESTED IN GERMANY.
Tested to ISO MTB standards and beyond. See test reports here.

INTENDED USE.
On almost all bicycles coming with a seatpost using two vertical saddle clamp bolts.

• Forward or rearward offset: 27mm
• Effective seat angle adjustment of 2º (e.g. from 76º to 78º at 680mm seat height)
• +15º / -15º saddle tilt adjustment at 72º seatangle
• Stack height is lower than your original post (-6mm for Fox posts, -9mm for Crank Brothers posts) and can be set higher if needed via the included spacers
• Weight: 138g complete assembly. Weight difference to original Fox Transfer MY2025 post hardware: +51g, to original Crank Brothers Highline 7 & 11 hardware: +64g
• Independently ISO tested in Germany, to MTB standards and beyond. Find the test reports here.
• Compatible with all dropper posts using the Fox Transfer MY2025 post head design and Crank Brothers Highline 7 & 11 posts. For other posts with convex interfaces please get in touch! Furthermore, with just the purchase of one of our hardware kits, it can fit posts using a concave interface and M6 bolts, M5 bolts, the Fox Transfer 2021 head design or road bike proprietary carbon posts.
• Compatible with all saddle rails: 7 mm round, 7x9 mm as well as 7x10 mm. One clamp does it all, no special parts required.
• Compatible with all saddles which measure 16 mm or more from the top of the rail to the lowest point of the saddle shell. Depending on how soft the saddle is, it might touch the seat clamp when the rider lands hard on the saddle.
• Not compatible with very few, odd shape saddles. Please find a list of these in the "DROP BEST compatibility chart"
• Remark: Saddles with rails that narrow really quickly after the clampable area, in forward facing direction, can limit the achievable offset when DROP BEST UC is mounted for rearward offset. It's really rare, but if in doubt, please reach out by email. Thank you!
• Not compatible with the following seatposts: Wolf Tooth Resolve and similiar, stick-through-the-clamp designs.
• For all tech details and available versions check out the DROP BEST UC manual here.