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Re: IIIPRO E4 4-Piston Hydraulic MTB Brakes - Are they to be trusted? So i have the ZRACE version of the 2 piston ones, Same design with different logo, and i like them so far.  i have not pushed them super hard but they have been great for XC riding in the midwest.
January 25, 2023, 12:22:50 PM 		1
Re: IIIPRO E4 4-Piston Hydraulic MTB Brakes - Are they to be trusted? IPRO does brakes for both road and MTB. Other companies just slap their name on them. At this point, I think the Chinese brake calipers are pretty solid for the price. I still think the Juin Tech calipers are bit more refined at a higher price point, so it's really up to you how much you want to spend. I have Onirii/IPRO, Juin Tech and Shimano hydraulic calipers on my various bikes and they all do a good job.
January 25, 2023, 12:38:57 PM 		1
Re: IIIPRO E4 4-Piston Hydraulic MTB Brakes - Are they to be trusted? The big difference versus XT (if nothing else) is going to be lever ergonomics and feel. Those are big, high angle two-finger levers. Everything about Deore/SLX/XT/XTR is designed around single finger braking and they have good ergonomics with a nice wide lever surface at a shallow angle.
January 25, 2023, 03:19:11 PM 		1
Re: IIIPRO E4 4-Piston Hydraulic MTB Brakes - Are they to be trusted? I purchased a set of these during the 11-11 sale and put them on my latest hardtail build.   To date, I have only ridden the bike on flat asphalt.   They worked great during my test rides, but I haven't hit the mountains yet due to winter snow.  (Therefore they haven't been put to any real braking challenges.)

I want to purchase a second set, but the prices are significantly higher than what I paid for mine.  ($80 with free shipping.)   Now, most Aliexpress stores  are selling them for $98 to $116.  I hope the price drops back down before spring.

From my perspective, they were easy to install and set up on the bike.  They have a good firm feel to them with good modulation.   As I've found out over the years,  the rotors and pads make a significant difference on all of the disc brake systems I have on my bikes.
January 26, 2023, 11:31:28 AM 		1
Re: IIIPRO E4 4-Piston Hydraulic MTB Brakes - Are they to be trusted? I have been considering purchasing the ZTTO hydraulic 4 piston brake set.  Much less expensive.   (To date, I haven't had any problems with other ZTTO parts I've purchased.

Any thought on these brakes?  Only $58.00 for a set.   ???  (They weigh more than the IIIPros.)

https://www.aliexpress.us/item/3256803409965298.html?spm=a2g0o.productlist.seoads.1.25f22882gTNJPJ&ad_pvid=202301260925388326283687139040031521868_1&s=p&gatewayAdapt=glo2usa4itemAdapt&_randl_shipto=US
January 26, 2023, 11:36:04 AM 		1
Re: IIIPRO E4 4-Piston Hydraulic MTB Brakes - Are they to be trusted? I actually had the ZTTO brakes on my bike (rigid HT with gravel 40mm tires) and although they performed really well, I  swapped them for the IIIPRO 4 pistons. The lever was too far to reach and kind off awkward build. Goes very outward so I never could reach it completely. Almost crashed in a tree doing some twisty singletracks because I had to loosen my grip on the bars to brake and slid right off with 1 hand. Now if you have bigger hands or longer fingers, the brakes could work for you because they had a nice bite and great brake performance. As I said, I now ride with the IIIPRO's, these are really great (and lever travel can be adjusted). Did now some 400km or so with them. Terrain is something between gravel and XC. Used them in the mud, dry, cold,... always equal power. Somewhere on this page I reported my findings so far. Nutshell: great stopping power, nice design, lightweight, rear caliper is touching frame so rubbed a bit in beginning (frame specific I guess), Bolts are not great quality but easily swapped. Overall really happy. Once I have more "test data", I will likely purchase a second set for my XC hardtail.
January 27, 2023, 02:22:30 AM 		1