As we speak is a tough one in biking tech, deciphering truth from fiction. However Ratio presents a little bit of each in a foolish April Idiot’s crankset setup that spins backwards to go forwards. After which, they curiously connected that to a vivid blue prototype Ratio direct full mount mechanical derailleur!
So choose the Ratio Reverso Spider if, like these Lake District tinkerers, you suppose “The Way forward for Biking is… Backwards?”
Or learn on additional for just a few close-up sneak peeks at that lovely blue anodized derailleur, and a few hypothesis as to what all of it means!
Ratio Reverso Spider – spin backwards to win!
Ratio Know-how hypes their Reverso Spider as “a groundbreaking drivetrain innovation that flips the script on pedal energy—actually“. It comes with an out-there 41% energy boots declare. “By participating the much less fatigued muscle teams in your legs, the Ratio Reverso Spider permits cyclists to generate extra energy with much less effort, making climbs simpler, sprints quicker, and wheelies extremely complicated.”
All that comes from the Head of Reverse Kinetics at Ratio Know-how, a Dr. April Erste. Get it?
“An extra good thing about the Ratio Reverso is that, when put in on a full suspension bike, pedal kickback is totally eradicated. Any spikes in chain rigidity arising from suspension motion are merely translated into innocent pedal kickforwards.” #groan.
Ratio doesn’t let the bit die, giving the Reverso Spider some legit-looking specs, whereas now we have to take a position in regards to the derailleur.
A weight declare of 140g with bolts because of carbon composite development; compatibility with SRAM 3-bolt, 8-bolt & Hope direct mount crank requirements; spinning on low-friction bushings; and a surprisingly affordable £95 / $99 / 92€ pricetag contemplating it’s made within the UK.
Attempt to order yours (and entertain the lads at Ratio) earlier than they expire at midnight tonight. Presumably, simply spam their electronic mail and social media feedback sections, since they’ve unusually not listed the Reverso of their internet store.
Onto extra critical enterprise….
Prototype Ratio full mount mechanical derailleur!


Sure, take a look at it!
That could be a fairly real-looking direct mount mechanical rear derailleur. And what seems like a ground-up new derailleur design from Ratio.
It’s no shock actually, that Ratio is engaged on their very own derailleur to make the most of the Full Mount commonplace ushered in by SRAM’s UDH. We already noticed Ratio testing a speedy prototype conversion of an outdated XX1 mechanical derailleur to a Full Mount a number of months earlier than SRAM debuted their very own digital AXS Transmission derailleurs that bolt on to your body and not using a derailleur hanger.
Plus, from the beginning, Ratio has been an enormous fan of the pure simplicity of mechanical shift methods. And naturally the flexibility they permit, letting Ratio tweak the ratchets in a shifter or the cable fin on the derailleur to vary cable pull ratios for SRAM shifter compatibility with nearly any mechanical rear derailleur or cassette setup.
Tech particulars?


What we are able to see right here is an all-new design from Ratio. The blue anodized elements are fairly clearly CNC-machined aluminum. However we are able to’t actually inform what these black B- & P-knuckles are product of from these screengrabs.
There does look like a clutch for off-road chain retention.
And the truth that the anodized elements are so visually distinct from the black physique suggests some modularity, like we additionally simply noticed in SRAM’s new mechanical Eagle 90 launch final week. Once more, not an enormous shock from Ratio who’re all about DIY service and restore.
The derailleur’s cage itself seems similar to their newest substitute cage for SRAM Transmission 10-52T derailleurs, suggesting an identical structure of pulleys offset from the clutch to clear actually wide selection cassettes.


Actually this seems like an ideal instance of the Ratio modular compatibility ethos.
This gravel bike combines the most recent 13-speed SRAM Pink XPLR gravel cassette (launched in August 2024) with a decidedly older set of SRAM shifters. I’m not precisely positive which these are (probably outdated Pressure HRD of some type). However they’re undoubtedly greater than 10 years outdated, from again within the day when SRAM street hydraulic discs have been mated to mechanical 11-speed drivetrains.
However in fact, Ratio already makes conversion kits to match these shifters to Eagle 12-speed MTB, street 12sp, and even Campagnolo 13sp cassettes. You simply have to select what combo you need.
Anticipated public launch?


After we spot a prototype like this within the wild, it’s typically laborious to inform how lengthy we’ll have to attend earlier than it involves market. However when a model itself sends out a teaser revealing as a lot as this, it’s most likely not far off. This Ratio full mount mechanical derailleur seems refined and production-ready.
Now, we simply have to attend and see when.
Simply to be clear, we reached out to Ratio for extra particulars and a launch timeline, and so they responded with no official remark presently. However they didn’t deny that Ratio are engaged on their very own derailleur. They usually promised to maintain us up to date, if-and-when it might turn into a business product of their line-up.
My curiosity is piqued!
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