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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28
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Description
Strange Evolution 4 Piston Brake Caliper - STB1900EVOLUTION 4 CALLIPER, EACH No Brake Pads Part Number: STB1900 Four Piston Evolution 4 Caliper Computer finite element analysis (FEA) optimized and field tested caliper Evolution 4 design improves piston retraction, pedal feel, and stiffness High retraction piston and O ring design to eliminate drag during acceleration Results in improved pad wear and exemplary braking efficiency Body 6061 T6511 fully machined billet aluminum Material enhances bridge
EVOLUTION 4 CALLIPER, EACH
No Brake Pads
Part Number: STB1900
Four Piston Evolution 4 Caliper
- Computer finite element analysis (FEA) optimized and field-tested caliper
- Evolution 4 design improves piston retraction, pedal feel, and stiffness
- High retraction piston and O-ring design to eliminate drag during acceleration
- Results in improved pad wear and exemplary braking efficiency
Body
- 6061-T6511 fully machined billet aluminum
- Material enhances bridge stiffness
- Promotes smooth piston release
- Provides responsive pedal feel
- Two bleeder screws ensure complete air evacuation
- 5.250" mounting bolt centers
Stainless Steel Pistons
- Material mitigates heat transfer to brake fluid
- Reverse dish pressure vessel piston maximizes stiffness
- Provides exceptional clamping force & improves pedal feel
- High thermal resistance combats brake fluid boiling potential
- All pistons are 1.750" for increased clamping force
High Retraction Piston O-rings
- Reduced rotational drag during acceleration
- Improves braking efficiency
- Increases brake pad life
Type II Black Anodize
- Corrosion, heat, and brake fluid resistance
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Poms approved
Size: Mini Size
My little Pomeranians love this. One loves to fetch so we got it for her but not my lazy boy has started fetching beside of this launcher. Cannot be more happier
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Exceeded expectations!
Size: Mini Size
This ball launcher has been the best thing we ever bought. We have a golden retriever who of course, like most goldens, is ball obsessed. I have thrown my fair share. I decided to see if my golden was smart enough to use this so we pulled the trigger. It took 3 days of on an off training and BAM! We are in business! This launcher has been a CHAMP! We've had it a month now and it has survived over and over of constant use. The balls are covered in pure slobber and nastiness but the machine keeps going. We do keep it plugged in and only use it indoors. Sometimes the ball does get stuck but it's easy to push it back through. The only complaint I have, and it's no fault to the company, but we are already on our 2nd pack of replacement balls. Honestly, it's been worth it. I probably should have purchased the bigger size but I didn't want to invest in it if he wouldn't use it. Definitely regretting it now!
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Reviewed in the United States on January 27, 2026
★★★★★ 5
Best system ever !!
My 12 yr. old Toy Poodle was already trained to a 'piddle pad' , so this system was easy to introduce. I simplly placed her piddle mat in the sturdy sided piddle box and she used it immediately. With a straight lower pad holder, she was peeing at the side and I was constantly having to clean the surrounding floor . Now, it is all contained and she is happy with her new 'piddle place'. And, I am very happy too !!
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Reviewed in the United States on June 3, 2025
★★★★★ 5
Great!
Took my dogs a couple days to get used to using it but works well, great for apartment living !
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Reviewed in the United States on February 28, 2026
★★★★★ 5
Perfect for dachshund
This is the absolute perfect size and with sides. I have one without sides and it's great but my dog has decided to stand on the edge and sometimes pee goes off or poop. Also he will be excited when I get home and try to pee fast and run and it gets on the floor. This will slow him down a little. The grid is almost too small and it holds pee. I have to wipe it everytime with a paper towel. I have a 10lb dachshund. He is long and he has plenty of room. I have 23x23 pads. I fold one side of the extra plastic down on the pad and it fits perfectly. I highly recommend this one!!!
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Reviewed in the United States on March 6, 2024