2 piston vs 4 piston brake pad lifespan.

[Kraner]

Greetings,

I commute 42 miles round trip in the hilly and (sub)urban Seattle area on a Priority Current, class 3 ebike, with the stock 2 piston 180mm rotors. After 3,000 miles I have replaced the brake pads (sintered) 4 times, so ~750 miles or ~every 18 riding days. Anyone have experience with upgrading to 180mm 4 piston brakes in regard to achieving a longer lifespan? How about a larger disc? Most the conversation I have seen only discusses braking power/distance/descents specifically.

Thanks!

 

[fooferdoggie]

thats a lot of wear in that time. I would think it's the pads myself. on our e tandem that clocks in at 400 pounds we get about 2000 or a bit less on Shimano metal or ceramic pads. we go down 18% grades and other steep decent were we cant go fast. you can stop faster with 4 piston or bigger rotors so that wood cut wear a bit.

 

[Rome]

Yes I agree there brake pads needing replaced under 1k miles is to much.Contributing factors are combined weight rider and bike naturally friction material will wear out with heavy riders and bike, braking techniques some riders hold the brake even on slight decent will also cause premature wear. It won't hurt switch to larger rotors and 4 piston caliper up forward, it helps dissipate heat better than small rotor. 180 mm 2 piston rear if not racing is okay.
I use 220 mm forward 203 aft. 4 piston both end its how it is equipped from dealer
I average 4-4.5k miles yearly. Once a year I replace pads with new I keep old ones because they are still reasonably thick.
Not sure if I will use it again.

 

[Shifty Shane]

Greetings,

I commute 42 miles round trip in the hilly and (sub)urban Seattle area on a Priority Current, class 3 ebike, with the stock 2 piston 180mm rotors. After 3,000 miles I have replaced the brake pads (sintered) 4 times, so ~750 miles or ~every 18 riding days. Anyone have experience with upgrading to 180mm 4 piston brakes in regard to achieving a longer lifespan? How about a larger disc? Most the conversation I have seen only discusses braking power/distance/descents specifically.

Thanks!

I don't have any personal experience with 4 piston calipers; however, I have been doing a lot of research in regards to upgrading the 2 piston calipers and 180mm rotors on my Biktrix Juggernaut Ultra FS Pro 3. I've upgraded the front rotors to 203mm, which had a noticeable improvement in braking performance, but I'm sure my pads will wear out faster now. From what I've noticed, the 4 piston caliper brake pads have much more surface area in contact with the rotors, this should translate into a longer brake pad lifespan in my opinion.

 

[Chazmo]

Greetings,

I commute 42 miles round trip in the hilly and (sub)urban Seattle area on a Priority Current, class 3 ebike, with the stock 2 piston 180mm rotors. After 3,000 miles I have replaced the brake pads (sintered) 4 times, so ~750 miles or ~every 18 riding days. Anyone have experience with upgrading to 180mm 4 piston brakes in regard to achieving a longer lifespan? How about a larger disc? Most the conversation I have seen only discusses braking power/distance/descents specifically.

Thanks!

Hi Kraner.

I have no experience with 4-piston brakes, but I fail to see how that would improve your situation if wear is the problem. I would check, though, are both pistons currently working? If once piston is jammed you would get uneven wear on your pads, but your braking power would decrease in an obvious way...

A larger rotor might help, but have you tried using metallic pads or semi-metallic? I understand resin (if that’s what you mean by sintered) have shorter lifespan. Still, 18 riding days is excessively short. How much to you and your bike weigh?

 

[teskow]

It takes a lot of wasted energy to wear out break pads that quickly. Maybe you need a re-gen system. Try coasting more.

 

[Stefan Mikes]

Guys, do you realise what Shifty Shane is doing in the Forum is called necroposting? Answering threads long dead.
(You could check the post dates).

 

[Gionnirocket]

I think he's a vampire. . .

 

[Shifty Shane]

Guys, do you realise what Shifty Shane is doing in the Forum is called necroposting? Answering threads long dead.
(You could check the post dates).

Sorry about that, I just recently joined the forum and I was bored last night. I know I'm late to many conversations, but I still want to share any info I have.

 

[Shifty Shane]

Guys, do you realise what Shifty Shane is doing in the Forum is called necroposting? Answering threads long dead.
(You could check the post dates).

Do you realize that I'm still sharing useful information that someone may see, regardless whether or not the original poster sees my response.

 

[Stefan Mikes]

Do you realize that I'm still sharing useful information that someone may see, regardless whether or not the original poster sees my response.

I doubt if your information is as useful as you think. It is a bad practice to revive old threads. Both Kraner and Rome were seen in the Forums over a year ago.
If you want to participate, please take part in current threads.

 

[Gionnirocket]

Do you realize that I'm still sharing useful information that someone may see, regardless whether or not the original poster sees my response.

Do as you like...Stefan is nothing more than the self appointed ebr SS commandant
If you were replying to a thread about Specialized... he'd applaud you.

 

[stompandgo]

Do as you like...Stefan is nothing more than the self appointed ebr nazi commandant

That's kinda harsh.

 

[Gionnirocket]

That's kinda harsh.

I took the edge off
But who is he to dictate what others may find useful or how others make use of the site.

 

[Chazmo]

That's kinda harsh.

I agree. There’s a very big difference between someone making noise and someone participating actively to answer questions or raise important issues, opinionated or not. Stefan is the latter.

For the record, I also find it quite irritating for someone to be reviving old threads for questions that were answered a long time ago. That’s because I like to focus on current users’ issues, and necrothread reviving just gets in the way of finding the threads that need attention. When someone posts to try to correct someone else’s behavior, I see it as self-correction on the forum. I have done this myself several times. Then, of course, there’s the “ignore” button, which I hate to use and does not stop necrothreads from showing up in the new posts button. Shame.

 

[Gionnirocket]

I agree. There’s a very big difference between someone making noise and someone participating actively to answer questions or raise important issues, opinionated or not. Stefan is the latter.

For the record, I also find it quite irritating for someone to be reviving old threads for questions that were answered a long time ago. That’s because I like to focus on current users’ issues, and necrothread reviving just gets in the way of finding the threads that need attention. When someone posts to try to correct someone else’s behavior, I see it as self-correction on the forum. I have done this myself several times. Then, of course, there’s the “ignore” button, which I hate to use and does not stop necrothreads from showing up in the new posts button. Shame.

Well everyone is entitled to their opinion....
Honestly not trying to offend as you seem like a very nice person.. But I find many of your posts are just cheerleading and regurgitating the most common of internet "facts" and you don't come across as very experienced or knowledgeable. But you're participating and learning and that's what's important.
Mr. Shifty on the other hand though replying to some dated posts has added to the helpful information here. Someone searching for an answer might find it helpful in the future... so the resurrections don't bother me.
In any event trying to stifle a new enthusiastic user by saying " If you want to participate, please take part in current threads" . I don't agree with.
And "I doubt if your information is as useful as you think." I find mistaken and offensive.
Seems those constantly touting the ignore button don't have the cerebral capacity to understand how to use it.
ymmv

 

[Stefan Mikes]

Just for clarity, Gionni Eejit as a known forum troll has been Ignored by me a long time ago, and I'm not interested what he wrote. I recommend doing the same.