Will this allow me to use a 2004-2008 10 speed Dura Ace derailleur with a 34 or 36 cassette and a 53-36 crankset? Or just later models?

Short answer is no. Those years 2 types of Dura Ace were released,7800 & 7900. If you have The 7900-SS model then yes(google image the differences) This road link DM is meant to replace the part of the derailleur that attaches to the hanger of Dura Ace 9100. Check out the Wolf Tooth Road Link without the DM in the title. That should get you there. And make sure to install a longer chain. Hope this helps. Btw This will not change your derailleur’s Total tooth capacity, But sometimes rules are meant to be broken. Go for it.

Will this work with shimano 105 r7000 gs cage rear derailleurs?

Yes, it will. Fits Shimano R9100-generation Dura-Ace, R8000-generation Ultegra, and R7000 105 rear derailleurs

looking to go to a shimano 11-42 CS-M8000with a grx 810 rear derailleur, would this be the right product?

Yes, this is what I'm using mine for.

Will this work with an xtr/xt derailleur and 3x up front?

No this is for the road rd’s dura ace 9100, ultegra 8000, and 105 7000. You want to get the mtb version. Check the wolftooth website it will tell you which version you want. I would think it works on a triple, I use it with more chain than they say works for sure, and it still works. I think they say on a 2x you want a 36 max cassette, but I am using a 42.

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Components Roadlink DM

Product ID: 398783061

Details

Brand
Wolf Tooth
Colour
Black
Material
Aluminum
Item weight
23 g
Mounting type
Braze-On Mount

📈Optimized for 11-speed wide-range cassettes

⚖️Ultra-light 8g weight

⚙️CNC machined precision

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₹ 6402

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Description

🚴‍♂️ Shift smarter, climb harder, ride farther.

FEATHERLIGHT UPGRADE - Adds only 8 grams, keeping your ride lightning fast and responsive.
ENHANCED CHAIN STABILITY - Reduces free chain slack for crisp, reliable gear changes every time.
PRECISION CNC CRAFTSMANSHIP - Expertly machined in Minneapolis for unmatched durability and performance.
SEAMLESS WIDE RANGE SHIFTING - Effortlessly handle 11-36t to 11-42t cassettes with flawless chain wrap.
EXPAND YOUR CLIMBING HORIZONS - Unlock new gear ranges to conquer steep climbs with less energy.

The Wolf Tooth Components Roadlink DM is a precision CNC-machined aluminum adapter designed to reposition Shimano direct mount road derailleurs. It optimizes shifting performance for 11-speed wide-range cassettes (11-36t to 11-42t), increases chain wrap, reduces chain slack, and weighs just 8 grams, making it the perfect lightweight upgrade for serious road cyclists seeking smoother, more reliable gear changes and expanded gearing options.

Specifications

Manufacturer	Wolf Tooth
UPC	812719027106
Global Trade Identification Number	00812719027106
Brake Type	Disc
Color	Black
Size	One Size
Height	1 inches
Length	1 inches
Weight	1 Pounds
Width	1 inches
Material Type	Aluminum
Number of Items	1
Power Source	Pedal power
Skill Level	Intermediate
Usage	Road
Sport	Cycling
Suspension	Rigid
Included Components	Miscellaneous Rear Derailleur Part
Batteries Included?	No
Department	Men's
Item model number	ROADLINK-DM
Product Dimensions	15.24 x 7.62 x 1.27 cm; 22.68 g
ASIN	B07BK67N3F

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