5Dev Mullet Mod Places SRAM MTB 1x Transmission on Non-UDH Gravel Specialised

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Maker of a number of the wildest machined mountain bike cranks in the marketplace, 5Dev turns their consideration to highway & gravel bikes with a game-changing UDH Mullet Mod for non-UDH bikes. What it means is which you can run a brand new direct mount SRAM mountain bike Transmission (T-Sort) derailleur on Specialised bikes which have a standard hanger.

That’s proper, T-type derailleurs on a motorbike that does NOT have a UDH.

Sure, for the time-bring it’s Specialised solely. However, we will’t think about that may final without end, as this might actually be a game-changer for updating tons of present bike!

Why not make highway and gravel bikes UDH & T-Sort suitable?

(Photograph/Tyler Benedict)

Micro-refresher right here, first. SRAM spent just a few years convincing the bike-producing world that the common derailleur hangeror UDH – was the way in which of the long run. Mountain biking makers received on board fairly shortly.

sram transmission direct mount rear derailleur installation closeup
(Photograph/Tyler Benedict)

And that later turned out to be as a result of SRAM had an all-new direct-mount fashion T-Sort MTB rear derailleur & Transmission within the works. With out tons of various hangers, they might bolt the derailleur on to your body, making certain improved stiffness, excellent alignment, and promising higher shifting. All you wanted was a UDH-equipped body. Tons of mountain bikes have already made the leap, so there’s tons of suitable choices.

However highway bikes and gravel bikes have been slower to get on board, as there wasn’t as a lot demand for that large 520% 1x gearing unfold.

At the very least, there wasn’t earlier than. Now, loads of gravel riders need that 1x simplicity. They need that mega Mullet gearing vary that mixes highway dropbar shifters with huge MTB cassettes. However the overwhelming majority – even with a number of the most creatively modern new gravel bikes – don’t have UDH-ready bikes.

So, 5Dev wished an answer. What’s their Mullet Mod?

Enter the bolt-on 5Dev Mullet Mod for Specialised bikes!

5Dev Mullet Mod for Specialized, non-UDH conversion kit to get T-Type Transmission direct mount MTB derailleur on gravel road bikes, B&W

Put merely, this appears to be only a smartly-designed thru-axle finish nut and set of spacers.

We’ve not seen an exploded diagram of it but. However presumably, it is a mixture of spacers on both aspect of your Specialised bike’s carbon dropouts. On the within, it could connect with the identical interface as Specialised’s personal replaceable derailleur hanger. And on the surface it areas all the pieces out to the proper width for the T-Sort SRAM MTB derailleur. Tying it collectively is probably going a particular thru-axle and a bolt that holds all of it collectively.

5Dev Mullet Mod for Specialized, non-UDH conversion kit to get T-Type Transmission direct mount MTB derailleur on gravel road bikes, up close

5Dev says that there are “no modifications wanted. It’s a bolt on mod.” So probably, it may imply the derailleur can be eliminated if you take away the rear wheel/axle. However doubtless many homeowners of present Specialised highway and gravel bikes would take that compromise to suit the newest mullet drivetrain onto their bikes.

What bikes does it match?

Specialized Diverge STR gravel bike dropout

First off, 5Dev says that it’s made for “choose specialised highway and gravel frames“. They go on to elucidate that it’s “very best” for the Diverge and Cruz line-ups, which incorporates the ‘full-suspension’ Diverge STR. Individually in addition they verify that it’ll match present Roubaix and Tarmac highway bikes, as properly.

Specialized Diverge STR gravel bike frameset

Additional dialogue of compatibility says that it “matches most 12x142mm by means of axle frames” with 5Dev’s patent pending design. The figuring out issue goes to be the width of the body on the dropout AND the constant interface for a replaceable derailleur hanger. Presumably, 5Dev may make choices to suit different bikes/bike manufacturers down the highway.

And the way a lot does it price?

5Dev Mullet Mod for Specialized, non-UDH conversion kit to get T-Type Transmission direct mount MTB derailleur on gravel road bikes, complete

Right here’s the trick. The 5Dev Mullet Mod for Specialised bikes prices $1500, and is ONLY obtainable in america.

But whereas that feels like an exorbitant worth for a derailleur hanger mod, it’s really a fairly full improve package deal. For fifteen-hundred bucks you get the whole bolt-on 5DEV UDH Mullet Mod, plus a brand new SRAM XX SL AXS rear derailleur, an XX SL flattop chain, and an XX SL 10-52T cassette. That’s already $1400 for the SRAM components themselves ($650, $150 & $600, respectively), making the 5Dev addition sound down proper reasonably priced!

Oh, and yet one more factor…

Prototype 5Dev Aero Titanium Cranks for highway & gravel

5Dev Mullet Mod for prototype 5Dev Aero Titanium crankset for road and gravel bikes

Did you discover these cranks on the Specialised gravel bike there? That’s an as-yet-unreleased set of CNC-machined 5Dev Aero Titanium Cranks for highway and gravel bikes. 5Dev is tight-lipped on the small print apart from to say ‘stay-tuned’. They clearly are SRAM direct-mount crankarms that share the exactly machined ends of their signature MTB cranks. However they’ve a clean outer floor and smoother rounded edges for cleaner seems and aerodynamics.

We’ll be preserving ears and eyes open for extra particulars!


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