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Shimano SLX Disc Brake M666 Fully Assembled

Shimano SLX Disc Brake M666 Fully Assembled
Shimano SLX Disc Brake M666 Fully Assembled
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Fully Assembled and Bled Disc Brake
Opposed Piston Design Provides Outstanding Modulation
Lightweight Forged Two Piece Caliper Design
Lead Time & Availability
Please call us on +44 (0) 1978 663001 for availability.


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Q & A


Note: Due to high demand, we're currently out of stock of this brakeset - any orders placed online will be charged in full and reserve a set from the next available shipment, please call us on 0844 499 5656 for up to date information.

Shimano have gone back to the drawing board and made significant steps forward with the new SLX hydraulic disc brake system by incorporating a number of their established technologies into a totally re-designed caliper and lever housing.

The main focus during the development of these brakes was to reduce heat buildup, which is the limiting factor in brake performance over extended periods, to this end the M666 forged two piece aluminium caliper uses an opposed 2 piston design (with oversized 22mm ceramic pistons which prevent heat transfer into the fluid) to provide excellent modulation, reduce leading effect and extend pad longevity.

A new generation of SLX always introduces new designs and the disc brake lever no longer shares any resemblance with the current range, moving from a 90° style housing to one more acutely angled results in a more natural lever position and ergonomic stroke, whilst allowing it to sit closer into the bar and for cleaner looks. The housing now features a split clamp to simplify installation and adjustment, whilst the new I-Spec system allows for an integrated brake/shifter mounting in the same vein as Avid's Matchmaker clamp. The short brake lever provides ample power and features reach adjustment for perfect setup.

The mineral oil brake fluid specified by Shimano is non-corrosive and less hazardous than conventional hydraulic brake fluid, whilst the shim-less mounting system allows for quick installation and set-up. This kit also contains sintered pads, plus spare olives and insert should you wish to adjust the length of the cuttable hoses. Front or rear versions are available, please select from options.

Hose length: Front 1000mm, Rear 1700mm
Note: Kit does not include brake disc rotors and caliper mounting adaptors

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