Shimano SM-RT66 6-bolt Brake Rotor

  • Shimano SM-RT66 6-bolt Brake Rotor - Components - front -  Shimano - - - - Speedlab
  • Shimano SM-RT66 6-bolt Brake Rotor - Components - bolts - Shimano - - - - Speedlab
  • Shimano SM-RT66 6-bolt Brake Rotor


Shimano SM-RT66 6-bolt Brake Rotor


Price incl. VAT excl. Local Import Taxes & Shipping Costs.

BTBF Members Qualify for a 5% Discount


Secured and trusted checkout with:

Shimano brake rotor SM-RT66 - 6-bolt for SLX and other brakes
Shimano SM-RT66 is a 6-bolt brake rotor available in diameters from 160 to 203 mm. It has a one-piece design and is made of stainless steel. This brake rotor at SLX level can also be used with XTR, XT, Alfine and other brakes. The mounting material is included in the scope of delivery.

Mount: 6-bolt
Diameter: 160 mm, 180 mm, 203 mm
Design: 1-piece
Rotor Material: stainless steel

Approved For:
Brake Compatibility: BR-M9100*, BR-M9120, BR-M9000, BR-M9020, BR-M8100, BR-M8120, BR-M8000, BR-M8020, BR-M7100, BR-M7120, BR-M7000, BR-M6000, BR-MT520, BR-MT420, BR-M820, BR-M640, BR-S7000, BR-S700, BR-R9170**, BR-R8070**, BR-R7070**, BR-RS805**, BR-R785**, BR-RS785**, BR-RS505**, BR-RS405**, BR-RX810**, BR-RX400**, BR-CX77**, BR-R517**, BR-R317**, BR-RS305**, BR-U5000**
Brake Pad Compatibility: sintered***, organic

* not compatible with 203 mm
** only 160 mm
*** with BR-S700 and BR-S7000 only organic

- performance indicator: select (level 1 out of 3)
- polished
- with self-locking plates
- for brake pads with narrow pad shape

Manufacturer Part Numbers:
180 mm: I-SMRT66M
203 mm: I-SMRT66L

- 1 x Shimano SM-RT66 brake rotor
- 6 x Shimano bolts
- 3 x Shimano rotor tightening plates

Weight: 160mm-115g  ; 180mm-139g


What type of mount system do I require to install the Shimano rotor on my wheel?
The Shimano rotor uses 6-Bolt to fix and secure to the hub.

What brake pads are the Shimano SLX RT66 brake rotor compatible with?
The Shimano SLX RT66 brake rotor are compatible with Metal and Resin pads.

What size diameter is the Shimano SLX RT66 brake rotor available in?
The Shimano SLX RT66 brake rotor is available in 160 mm, 180 mm and 203 mm.

Customer Reviews

Based on 3 reviews Write a review


Hands of Hope

Your Purchase does good, gives back and makes a lasting impact. 5% of profits of all products is donated to the Joyce Meyer Hands of Hope Initiative. No cost to you.

Joyce Meyer Ministries - (

Homes on Heads

With Your Purchase of any Helmet, you contribute to placing more Homes on Heads. Make a lasting impact to those who are homeless, or who may have lost their homes due to any national disaster. 5% of profits of helmets gets donated to the Joyce Meyer Ministries who will help us with this Initiative. No cost to you.

Joyce Meyer Ministries - (


SPEEDLAB ships from Monday to Friday with the exception of public holidays. We ship complete orders only, i.e. the dispatch usually takes place as soon as all ordered items are ready for dispatch. Please contact the SPEEDLAB service team if you wish a partial delivery.


Depending on destination country, package size, volume and weight, SPEEDLAB ships with the carriers German Post, DHL, German parcel service, DPD, USP. Deliveries of bulky goods, for example complete bicycles, will be handled by selected forwarding companies.

For return shipments SPEEDLAB cooperates with German Post, DHL and DPD. Large bulky goods like bicycles will be picked up by a forwarding company.

In Germany and most European countries the are shipped with DHL, Hermes, DPD, UPS, German Post.




  • Germany 5,99 Euro DHL / DPD / Hermes / German post
  • Rest of Europe: 13,99 Euro (DHL, DPD, Hermes)
  • Rest of world: 29,99 Euro DHL
  • Cash on Delivery + 4,9 €


For all items marked with this symbol, which are ordered on business days from Monday to Friday by 3 p.m. (CET), we offer the DHL Express shipping option or UPS for selected delivery countries. The DHL Express&UPS option is subject to an additional surcharge. It can be selected during the ordering process, provided that all items in the shopping cart offer the Express option. In addition the DHL Express option must be available for the selected delivery adress.

An order within the EU usually arrives the following business day. Depending on the postal code of the delivery address, longer parcel delivery times may occur.


  • Germany 15 Euro (DHL, UPS, TNT)
  • Rest of Europe – 49 EURO (DHL, UPS, TNT )
  • Rest of world – on request

In-stock items will be shipped within Germany in 1-2 working days, within Europe and worldwide in 1-3 working days. Unfortunately the delivery at a certain date given by you is not possible due to logistic reasons.

Should the ordered item not be in stock, the delivery time is extended analogue to the delivery in our warehouse. Information regarding the availability can be obtained at +49-7022-9-777-818 or

Please note: The ordered goods may be subject to a partial delivery.

Import Taxes, Customs Duties and Fees / National VAT

The indicated prices including VAT. In addition to the calculated SPEEDLAB shipping costs customers not living in the EU have to pay the national VAT and duty in their country for the imported goods.

Transport Damage

If you receive a damaged shipment please refuse the receipt if possible. Anyway, please get in touch with the Bike24 service team by e-mail or phone as soon as possible. We will be happy to solve the issue.


The SPEEDLAB team will do its best to fulfill your change requests.

The wish to cancel must be declared within 14 days after receipt of the goods. The return must take place within 14 days after the declaration of the cancellation.

Before the actual dispatch of your order, it can still be canceled. Please send us your request as soon as possible using the contact form or call us by phone. Should the payment have been charged already, it will be refunded in a timely manner.

Pack everything you want to return to SPEEDLAB carefully and include your order number. Remove the old shipping label and attach the return label to the package. You can return the package at DHL and Hermes stations. For all other countries: Please contact us with your return request and our customer service will arrange the process. Usually, SPEEDLAB covers the return costs.

A return will be processed at SPEEDLAB within a few working days. Once your request has been successfully processed it will be confirmed by e-mail. A possibly necessary refund will be processed directly afterwards.


Recently Viewed.