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TEKTRO Orion HD-M745 Hydraulic Disc Brake Lever and 4-Piston Caliper, 1800mm Hose, Black

4.7 (3) Write Review
Free shipping on orders over $15.00

$79.99

$ 32 .99 $32.99

In Stock

1.Size:Left


About this item

  • 4-PISTON POWER FOR MAXIMUM CONTROL: Features a high-power 4-piston caliper design, delivering exceptional braking control in a lightweight 271g package. This system ensures precise modulation and stopping power, making it ideal for aggressive trail riding and demanding mountain bike terrain.
  • FORGED ALUMINUM CALIPER FOR DURABILITY: The caliper is crafted from forged aluminum, ensuring a strong, durable structure that can withstand tough conditions. Designed for easy pad replacement, it keeps maintenance simple, so you can focus on your ride rather than your brakes.
  • CUSTOMIZABLE REACH FOR A PERFECT FIT: The forged aluminum lever features a reach adjust mechanism, allowing you to fine-tune the lever position for optimal comfort and control. Whether you're a beginner or an experienced rider, the customizable reach ensures a personalized braking experience.
  • EASY COMPATIBILITY WITH I-SPEC II AND MATCHMAKER: The Orion 4P is fully compatible with I-Spec II and Matchmaker systems, providing a clean, efficient cockpit setup. The 2-finger lever blade allows for precise braking control while maintaining a sleek, minimalist handlebar setup.
  • MINERAL OIL BRAKE FLUID FOR RELIABLE PERFORMANCE: With its use of mineral oil brake fluid, the Orion 4P ensures smoother and more consistent braking performance. Offering lower viscosity for higher flow rates, it excels in heat resistance up to 230°C, providing reliable braking power during long descents and extended rides.


The Tektro Orion 4P disc brakes are an open system, 4-piston, disc brake offering powerful and controllable braking.
• Lever:
 » Forged Aluminum Lever / Cast Aluminum Bracket
 » Reach Ajustment
 » Two-Piece Hinged Bracket
 » 2 Finger Blade
 » Compatible with I-spec II® & Matchmaker®
• Caliper:
 » 4 Piston, Forged Aluminum Body
 » Easy pads replacement from top
• Pads:
 » Overall balance resin pad
 » Upload Replacement
• Fluid:
 » Non-Corrosive Mineral Oil
 » Excellent Heat Expansion Properties
• Weight: (Excludes Rotor, Adapter & Mounting Bolts)
 » Front Wheel - 251 Grams
 » Rear Wheel - 271 Grams
• Rotor Compatibility: 1.8mm thickness (rotor sold separately)
Brand: Tektro


dan hinz
Reviewed in the United States on March 2, 2025
Outstanding. I replaced an existing mechanical (cable) system total time was less than two hours. included directions were adequate but read them through completely before starting. If you follow the directions carefully, they won't require bleeding. I did rear brakes first and they needed about 3 drops of oil to top off. The front brakes were better (I had perfected my technique) and required no fluid. These brakes have much more stopping power than the ones I replaced. Highly recommended. I'll have to see how they perform in the long run.
Cane
Reviewed in the United States on March 6, 2024
This is the second set. I bought my first set for the front of my bike a year ago. these brakes have lots of modulation and decent power with the resin pads that come with them and using a160mm tektro rotor on a 29 x 2.4 minion tire. However using semi metallic pads with a 180mm trp slotted rotor on the same wheel setup and modulation has dropped dramatically but the stopping power increased to the point that the brakes are almost on/off now.
Idiocracy-theworldwelivein
Reviewed in the United States on August 12, 2023
Ok, so let’s start with weights….. I’m 230, and probably bigger than I should be for the things I do with a hard tail bike…I have a GT downhill bike with coder brakes for a comparison….While these aren’t quite the codeR brakes…. These things are pretty darn close, and for the money!! I would argue that they are close enough. Factory pads are decent, again for the money- dang.Mineral oil too so for convenience at my house this is great!