Shimano Deore BR-M6100 Disc Brake Caliper - Thunder Mountain Bikes

Deore BR-M6100 Disc Brake Caliper


Regular price$38.99
Brake Pads
  • Low stock - 1 item left
  • Inventory on the way
  • Free shipping on all orders $49+


The Shimano Deore M6100 caliper features lightweight braking performance and reliable stopping power in all conditions.

  • Model No: BR-M6100
  • Series: Deore M6100
  • Pistons: 2
  • Mount: Post mount
  • Included brake pad: G04S metal
  • Fits front or rear brake


  • Brake lever: BL-M6100
  • Brake hose: SM-BH90-SS
  • Oil: Shimano Hydraulic Mineral Oil
  • Brake Pads: G03A resin, G03S resin, G04S metal, G04Ti metal, J03A resin, J04C metal


Please reach out to us with any questions you may have on anything we sell. We want to make sure you get the right part the first time. Our lifelong riders at Thunder Mountain Bikes are knowledgeable and would love to talk to you!


We currently offer both economy and expedited shipping options though FedEX and USPS. 

Orders totaling over $49 are eligible to ship for free via an economy ground option of our choice. 

If you're in need of something super-quick, please contact us directly. We may be able to overnight your order with an additional fee and depending on your location. 


Should there be an issue with the item you bought, or you no longer need your purchase, we will be happy to set up a return.

All returns must be requested within sixty (60) days of the fulfillment date (i.e. the date we printed the shipping label and boxed up your order.) All returned items must be received in new and unused condition, with the original tags and labels attached, and in the original packaging.  We cannot accept returns on any items that have been installed or show wear of any kind. 

Return Process

To request a return, please visit: and follow the steps to return eligible items from your order. 


After receiving your return and inspecting the condition of your item, we will process your return. Please allow at least seven (7) days from the receipt of your item to process your return or exchange. We will notify you by email when your return has been processed.

For all Special Order items, there is a 25% restocking fee. Special Order items are those that we do not currently stock.


For defective, damaged, or if we sent you the wrong products, please contact us using the phone number or email below.

Other questions?

If you have any questions concerning our return policy, please contact us at:

(928) 282-1106   |

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Customer Reviews

Based on 4 reviews
Amazing price and power.

Needed a replacement and this fit the bill. This will work with most Shimano triggers. I used these on my XT levers.

Barry Erlandson
Great product for a good price

These brakes have become my go-to 2 pot brakes, especially when put on a cross-country / down-country style bike. Shimano have always been easy for me to bleed and set, and I have no complaints. Thunder Mountain Bikes has also been pretty awesome as they have shipped things out unexpectedly fast. They have quickly become one of my go-to shops online for bike components.

Daniel Boehning
Great replacements from RS785

One of my RS785 on my road bike started leaking from a cracked piston. Attempted to use third-party replacement pistons, couldn't keep hold and leaked. The 6100s hold the same pads (G03S). These 6100s are mounted up to Tiagra 4700 hydraulic brifters. Keeps my road bike happy. Thanks Thunder Mountain Bikes for a solid price and quick delivery.

Excellent braking power at affordable price

The m6100 line benefits from a good deal of trickle down tech from upper trim levels. High performance at a lower price point. The only thing I miss is the banjo connection