Hope Tech 4 Lever Strip Down, Small Comparrison Vs Tech 3 Lever + E4 Caliper Change
Спорт
A person talks too much about Hope Tech 4 and maybe something useful for someone in the World.
0:00 What is the video about?
00:10 The caliper seem the same as the 2012-2021 E4
01:02 What the plan
01:23 Tech 4 vs Tech 3 lever
04:10 Weight
04:49 Incompatible top caps, more tools to buy!
05:20 Tech 4 strip down begins (Top cap - t10 torx)
06:16 Lever Pivot removal (6mm spanner/socket + 2.5mm allen key)
08:40 Removing internals (t10 security torx)
10:39 Tech 4 pistons vs Tech 3 piston
11:26 This is not a test or review channel
11:52 Tech 4 lever bearings (684 2RS 4x9x4mm)
13:38 Reassembling the lever (Piston + Stop plate)
17:00 Lever blade overview
18:50 Installing lever blade on to master cylinder body (6mm spanner/socket + 2.5mm allen key)
20:55 Rubber diaphragm and top cap install (T10 torx)
22:36 Piston comparison
Пікірлер: 48
I used to have two pairs of v4, but i sold it off. Ever since then, I always thinking about them. Now you have made this video, and it is clearly how carefully they cnc this stuff to a masterpiece. Thanks for this video! I will go back to hope 😂
@Chambers36TheEnter
Жыл бұрын
If you can afford it then they are a good investment. 👍
Excellent video. Thank you so much for posting. Very helpful. Much appreciated.
I love comparison videos. Great job.
Hey buddy, thanks for this. Keep it going 👍🏻👍🏻
@Chambers36TheEnter
Жыл бұрын
Thank you for the feedback 👍
Hope Tech V4 s are the ONLY brake I I use….flawless performance every ride!
Great review man! Very helpful!
@Chambers36TheEnter
Жыл бұрын
Thanks for the feedback
Excellent dude thanks
I have tech 3 and I love them but I'm going to get tech 4 anyway. They're amazing brakes 👌🏻🔥
@Chambers36TheEnter
11 ай бұрын
I use tech 3 with the e4 calipers, can't see me changing anytime soon. Tech 4 is nice but not really a huge jump for me in terms of performance as I don't push the tech 3 to 100%.
@MartinTeerly
11 ай бұрын
@@Chambers36TheEnter I was thinking of doing same thing but caliper itself is £100 and whole set per side is 175 quit 🤷🏻♂️
@Chambers36TheEnter
11 ай бұрын
@@MartinTeerly Either way you can't go wrong. I still have Hope Mini brakes from 2002 and they work great on my 26". 175 seems pretty reasonable considering the build quality.
@MartinTeerly
11 ай бұрын
@@Chambers36TheEnter just paid £154 for one side. Not too bad 👌🏻
the lower bearing missing is strange, interesting overview cheers
I've always used hope brakes my friend has recently got the tech 4 I'm not really a fan of the lever or look so going to try get my hands on some tech 3. Thanks for the video
@Chambers36TheEnter
Жыл бұрын
I think the lever feels better but don't like the look of the brake. In my opinion they would be better off redesigning the caliper to make them easier to set up.
@socialising6037
Жыл бұрын
@@Chambers36TheEnter yeah I had a look at my friends yesterday the lever does feel straighter and nicer for one finger. Overall I think the tech 3 look more jazzy. Not really keen on the bearings on the lever as like you say it will be a part that will need replacing. Do you think there worth it. I'm very tempted as they are the same price as tech 3s atm
@Chambers36TheEnter
Жыл бұрын
@@socialising6037 I guess they are the same price as tech 3 because they priced the tech 4 too high to begin with, it was 195 per brake to begin with. The Tech 3 is discontinued now so I think what's left is new old stock. If they are worth it or not I could not say, they still seem very expensive but it's also very easy to get parts if they do break. In the long run they seem like a solid choice.
@BramBiesiekierski
Жыл бұрын
Truly interesting to see them in detail. I have Tech 3 with E4 on my Trek Remedy, and Tech 3 with V4 on my Dengfu eMTB. Absolutely love the Hope brakes. I will continue to put them on all my bikes. I bought the eMTB Tech 3 brakes after they released the Tech 4. They were heavily discounted to make way for the new release. So I scored a sweet deal on the old model Tech 3s. I haven't tried the Tech 4 yet. So can't say if they are better. But I don't have any problems with the Tech 3s whatsoever. They are reliable. They pull the bike up well. And they don't self destruct if you crash. And to be honest, I think I prefer the look/styling of the Tech 3s more than the Tech 4.
@Chambers36TheEnter
Жыл бұрын
@@BramBiesiekierski I think visually the tech 3 is nicer looking also, especially in the silver Finish. Tech 4 looks like it's still in a prototype phase, something unfinished about it. The 4 on the top cap looks a bit dated in my opinion.
Very good video love to see the v4 caliper taken apart like this compared to there E4
@Chambers36TheEnter
Жыл бұрын
Thank you. The V4 uses 2 pistons the same size as the E4 and then 2 bigger ones, there's not much to take apart really, I guess it would be a quick video.
@justing6614
Жыл бұрын
@@Chambers36TheEnter hahaha true that. I guess i just want to see it up close.
Very informative presentation Kudos to you, So in theory remove old tech 3 lever piston insert new tech lever piston then exchange old calliper piston with new tech 4 calliper piston and we have a more powerful Tech 3 brake ?
@Chambers36TheEnter
Жыл бұрын
Interesting idea, I'll try and it see. I'd guess that the new tech 4 piston would be too big/long for the tech 3 lever body but yes you could buy the hybrid caliper pistons for an older E4 caliper. I have not seen the hybrid pistons for sell yet though.
@obiwun32
Жыл бұрын
The Tech 4 piston is supposed to be a different diameter which creates more power compared to Tech 3.
Nice vid!! Maybe you know it lever from brake handle tech 3 will be fit to tech 4?
@Chambers36TheEnter
Жыл бұрын
No idea but I doubt it. Hope are clever like that, they want you to buy the new stuff.
Hi, do you think the tech 4 lever and can will fit in the tech 3 master cylinder? Cheers
@Chambers36TheEnter
Жыл бұрын
I don't think it's possible, tech 4 lever has bearings and different pivot, you would need your own bushings at the least.
So do you need to buy the whole set to upgrade from tech 3 - v4 to tech 4 - v4 or can buy the tech 4 and hybrid pistons?
@Chambers36TheEnter
Жыл бұрын
You can buy the hybrid pistons and use them in your e4 calipers that came with your tech 3 brakes. Part number is HBSP432. Not sure if it's an upgrade or not, metal ones more likely to get scratched but apparently move smoother when you pull the lever.
Excellent video. One of my tech 4 levers is slow to return to full extension. Any ideas to troubleshoot?
@Chambers36TheEnter
Жыл бұрын
Thanks. Normally slow lever return is due to a seal being swollen or fluid inside the brake that has solidified. The fluid only tends to do that after many years of sitting around so I would say it's more likely a seal. Worth just stripping the lever it down and checking for any damage to the seals. Also I think Hope give at least a years warranty on their brakes.
@taol8258
Жыл бұрын
@@Chambers36TheEnter Interesting, I've only had the brakes for about 2 months. I was hesitant about stripping the lever down but thanks to your video I'll give it a try. I live in the states so I'm sure warranty turnaround time would take weeks.
@Chambers36TheEnter
Жыл бұрын
@@taol8258 Yeah it's pretty straight forward, just take your time.
Do you not think the increase in power comes from the leaver being longer ie giving you more ratio
@Chambers36TheEnter
Жыл бұрын
I guess it could be. There must be some mathematical equation to say how long the lever would need to be to gain 30% increase over the previous. I do think that the longer piston helps and the fact the master cylinder body is a bit bigger has some affect. Having a longer lever will also highlight any spongy feeling and after bleeding the Tech 4 E4 brakes I had they felt good.
@lux-3001
Жыл бұрын
It is a combination of piston diameter, stroke and lever length. Only a longer lever gives too much lever stroke. It is always a compromise between power and modulation.
@BramBiesiekierski
Жыл бұрын
If the piston count and diameter (surface area) inside the brake calipers hasn't changed. Which it doesn't look like they have. Then only way they could increase brake force is by either DECREASING the diameter of the master cylinder bore. (P=F/A). Or increasing the leveridge ratio between the lever and MC piston. The distance that the piston travels isn't particularly important, and wont affect the pressure. It's the diameter / surface area of the piston that is important, and that is what will affect the pressure. The distance the piston travels will only change how much fluid it can displace per stroke. Which is still important so that you don't run out of stroke. Perhaps the piston diameter is marginally smaller. And they have increased the distance the piston can travel, so the fluid displacement remains similar. A smaller diameter MC piston will generate a higher hydraulic pressure per input force. It will also give a better modulation control, as the same displacement is spread over a larger travel.
The publicity performance of the official website has increased by 40%. I tried it and there is no difference.
@davidcart28
Жыл бұрын
That’s not good I was thinking of upgrading
@mufeiling2452
Жыл бұрын
@@davidcart28 No need, I recommend Shimano M820
@Chambers36TheEnter
Жыл бұрын
@@mufeiling2452 My issue with shimano is once out of warranty there's only really Chinese spares for them, nothing official. It's like they expect you to buy a whole new caliper for the sake of a £0.50p seal. That's why I still have Hope brakes from 2002 plus I feel the build quality and modulation on the Hope is much better but outright power is not their strong point.
@hannahtaylor8996
Жыл бұрын
if you look at any review on either the e4 or v4 they all say the power has massively increased. The v4 is being reported on multiple reviews as being more powerful than saints.
@kingflynxi9420
Жыл бұрын
I have tried tech 3 e4 on a mates bike and I have tech 4 on my own, the tech 4 hasn't got as nice a lever feel but it's so much more powerful, especially when it's bled properly