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TRP G-Spec DH7 RD-M860 Rear Derailleur - 7-speed - black/silver

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Description of TRP G-Spec DH7 RD-M860 Rear Derailleur - 7-speed - black/silver


Shifting Focus

Designed for rough and rocky rides on big bikes with 200 mm of travel.


TRP DH7 Series derailleurs like it steep, fast and enjoy breathtaking airtime.

With the DH7 series TRP (TEKTRO Racing Products) presents drivetrain components designed for the gravity-focused rider. They are the result of an intimate development relationship with 5 times Downhill World Cup Overall Champion Aaron Gwin and his personal mechanic John Hall. From start to finish this project spanned more than three years.

When it comes to developing new products, TRP is taking the “R” in the brand's name seriously which stands for racing. This focus is almost the reason the brand was started in 2006 by the TEKTRO management. Since then TRP has been working with world champions in Cyclocross, BMX and MTB to create race-worthy high-end products.



TRP G-Spec DH7 RD-M860 rear derailleur

For building the advanced DH7 rear derailleur and introducing new features to the world of Downhill racing, TRP worked closely with Aaron Gwin and his mechanic John Hall. The derailleur is a true G-Spec model, utilizing carbon fiber for the outer parallelogram link and pulley cage. In addition, it offers an adjustable Ratchet Clutch as well as the Hall Lock function, a B-Knuckle lock that reduces noise and increases shifting stability.


Technical details of the 7-speed derailleur:

  • chain compatibility: 11-speed
  • max. sprocket size: 25 teeth
  • pulley size: 11 teeth each
  • extra wide parallelogram pivot
  • Hall Lock function
  • Ratchet Clutch for increased chain stability
  • chain length indicator
  • weight: approx. 272 grams (manufacturer's specs)


  • shell: carbon, aluminium
  • cage: aluminium (forged)
  • spring: stainless steel
  • bearings: stainless steel (sealed)


Technologies of the TRP DH7 rear derailleur

In three years of development, TRP together with Aaron Gwin and John Hall, designed an innovative Dowhill rear derailleur: 7 gears, defined shifting behaviour and a maximum reduction of chain bounce. Two key features make the DH7 perfect for very rough use:


Hall Lock

TRP engineers worked closely with John Hall to create the Hall Lock. A Lever integrated into the B-knuckle mount, which can be opened or closed, as needed. For working on the derailleur or changing the wheel, the Hall Lock is opened. When locked, the derailleur is stabilized for the roughest conditions. This feature helps maintain the utmost accuracy in shifting and superb chain retention. Its clamping force can be adjusted to balance stability and security with the derailleur’s ability to deflect on impact.

  • Hall Lock is an on/off feature with adjustable force that brings TRP’s derailleurs the utmost stability, accuracy, chain retention and quietness in operation for mountain biking’s roughest conditions.
  • It can lock-out the main pivot bolt to prevent your derailleur from lifting, slapping and making noise.
  • You can set it up however you like – if you want maximum stability you can lock it; if you like it to move like a standard derailleur you can adjust it to do so.

Ratchet Clutch

The second derailleur feature is a ratchet style clutch, which is adjustable. Depending on a full suspension bike’s design, there can be enough chain growth to feel resistance from the clutch. If a rider wants to free up the system up, he or she can back off the clutch to balance pedal feedback with the clutch’s chain retaining properties.

  • Large diameter clutch surfaces for wear resistance and predictable force generation.
  • Oversized friction surface area for consistent force output.
  • Adjustable clutch force provides a wide range of customizable ride tuning and compensation for wear.
  • Quick and easy on/off switch removes all clutch force when needed for wheel changes.
  • Robust pawl engagement.

Chain Length Indicator

Markings on the knuckle and the cage help to ensure a quick and accurate measure of the system’s required chain length. At the same time these printed indicators are easily readable.

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Fact Sheet of TRP G-Spec DH7 RD-M860 Rear Derailleur - 7-speed - black/silver

Product Name: TRP G-Spec DH7 RD-M860 Rear Derailleur - 7-speed - black/silver
Manufacturer: TRP
Item Code: TRP479661
activity: Bike
material: Aluminium, Carbon
usage bikesport: MTB, Downhill
shifting system: 7-speed
shifting actuation: Mechanical
rear derailleur max. teeth: 25
rear derailleur version: conventional
Model year: 2020
Color: Black, Silver
weight: 272g
manufacturer item code: ABDR000005
Dangerous goods: no
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