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GarbarukRear Derailleur Cagefor Shimano 12-Speed MTB / GRX 12-Speed

$73.00
Built for
  • Shimano MTB
  • Shimano Road
  • Shimano GRX
  • mtb
  • gravel
Key specs
Speeds
12-speed
Color Black

Does it fit my bike?

In stock Ships from Seattle, WA

  • Free USPS Ground Advantage on orders of $50 or more.
  • $5 flat rate USPS Ground Advantage on orders under $50.
  • Expedited shipping is available for $10 via USPS Priority Mail.

Overview

This Garbaruk Rear Derailleur Cage replaces the stock cage on a single-chainring (1x) Shimano 12-speed MTB or GRX SGS derailleur. It is machined from 7075-T651 aluminum, weighs 49g, and is color anodized, available in eight colors. Garbaruk's cages enable the use of Garbaruk's oversized cassettes, supporting large cogs up to 52T.

Why we love it

We love Garbaruk cages because they enable riders to upsize their largest cog up to 52T, they are precisely machined to specification for a swath of rear derailleurs, and every one comes color anodized in eight beautiful colors.

Why it makes the cut. Hammer & Howl only carries parts we believe are among the best in the business. Garbaruk cages are a great way to enable substantial range extension.

Specifications

Number of speeds
12-speed
Drivetrain
Shimano MTB; Shimano GRX
Fits derailleurs
Shimano SLX (RD-M7100); Shimano XT (RD-M8100); Shimano XTR (RD-M9100); Shimano Deore (RD-M6100); Shimano GRX 12-speed (RD-RX822), SGS
Weight
49 g
Material
7075-T651 Aluminum Alloy
Finish
Color anodized (8 colors)
Made with
CNC milling
Recommended pulleys
Garbaruk Rear Derailleur Pulleys for Shimano (the 14T and 16T set for this cage, sold separately; the derailleur's stock pulleys also work)
Setup
1x drivetrains only

Warranty

Garbaruk publishes its written warranty, including what it covers and what it excludes, at garbaruk.com/warranty-returns. We will send you a free copy of that warranty on request. Email support@hammerandhowl.com or call (206) 420-9548.

What's included

  • One Garbaruk rear derailleur cage in the color you select

Not included: Pulley wheels. The pulleys shown in the product photos are sold separately. The cage ships on its own. You can reuse your derailleur's stock pulleys, or add the Garbaruk Rear Derailleur Pulleys for Shimano to upsize them.

Will it fit your bike?

Compatible with

  • Shimano 12-speed 1x mechanical derailleurs: SLX (RD-M7100)
  • Shimano 12-speed 1x mechanical derailleurs: XT (RD-M8100)
  • Shimano 12-speed 1x mechanical derailleurs: XTR (RD-M9100)
  • Shimano 12-speed 1x mechanical derailleurs: Deore (RD-M6100)
  • Shimano 12-speed 1x mechanical derailleurs: GRX 12-speed (RD-RX822), SGS

Not compatible with

  • Any derailleur not listed above (Shimano Di2, Shimano 11-speed, and SRAM)
  • Two-chainring (2x) drivetrains

Confirm before ordering

If you are not sure which derailleur your bike has, confirm with your bike mechanic or contact Hammer & Howl before ordering.

This cage is for 1x drivetrains only. It uses the derailleur's stock pulleys and pulley bolts, or the Garbaruk Rear Derailleur Pulleys for Shimano in the 14T + 16T set, sold separately.

Questions

What would I need this cage for?

To use a Garbaruk 52-tooth cassette on your Shimano derailleur, for an easier climbing gear. Shimano's official maximum for these derailleurs is a 51-tooth cog. This cage lets a Shimano 1x 12-speed MTB or GRX derailleur use Garbaruk's 52-tooth cassettes. One example is the Garbaruk 12-Speed Gen 2.0 MTB Cassette for Shimano Micro Spline, sold separately. It is machined from 7075-T651 aluminum and color anodized in eight colors.

Can I use this cage with a smaller cassette too?

Yes. The cage supports cassettes up to a 52-tooth cog, so you can keep it on and use a smaller cassette too, for example when you swap wheels. Have your mechanic set the chain length for the largest cassette you plan to use. If you are pairing two very different cassettes, see the Will it fit section or contact Hammer & Howl to confirm before ordering.

Will this cage fit my Shimano derailleur?

Yes, if it is one of the listed Shimano 12-speed mountain bike or GRX derailleurs in the SGS long-cage version (SLX, XT, XTR, Deore, or GRX 12-speed). It does not fit Shimano Di2, Shimano 11-speed, or SRAM. See the Specifications and Will it fit sections for the full list of compatible derailleurs before ordering.

Can I reuse my pulley wheels?

Yes. You can keep your derailleur's stock pulley wheels and pulley bolts, so there is no need to buy new ones to use the cage. If you want larger pulleys, the Garbaruk Rear Derailleur Pulleys for Shimano are an option.