[Closed] Details of new Hope Tech 4 lever

Currently on Tech 3/ E4 combo and love them. I understand the gains must be due to the lever length, but these look like four finger touring brakes. Would be interested if the levers were shorter...

Would be interested if the levers were shorter…

They might be compatible with other Tech 3 blades, though knowing Hope these days probably not. But maybe.

It actually looks the ideal for me on the ebike, and maybe thats also where they're going with these. Coupled with the E4 or V4 calipers.

Joe Barnes did a bike check recently and he showed how Hope had made him a custom level which closer resembled the tech3. I’d like to know if the new pistons in the calliper are compatible with current E4s.

Not just Hope, but where does everyone making brakes keep finding this extra power from? Surely distance X force at the lever = distance X force at the caliper. I don't imagine the losses in the system are significant. The only way to get more power (reduce lever pull effort) is to increase lever throw and/or reduce required pad throw (by reducing pad clearance or funky servowave type gadgets).

ignore - you said increase lever throw -not lever length

Ignored 😉

Not just Hope, but where does everyone making brakes keep finding this extra power from?

I think Hoe have made the 15% extra power claim over the last 7 changes to their braking systems 😆

C2's rulz

the gains must be due to the lever length

Lever length, revised cam position and narrower piston in the master cylinder according to the pink site

Is it just me that can't unsee the channel 4 logo on the reservoir cap?

Looks like the master cylinder/cap will finally be able to be easily positioned level to the ground, making bleeds easier.

Is it just me that can’t unsee the channel 4 logo on the reservoir cap?

Only now you said it!

Is there any indication of when the levers will be available separately?

Available in 31.8 and 35mm due to have far inboard you need to mount them.

Is the blade from the pivot to the tip actually any longer than say a Trickstuff Maxima? It maybe looks longer due to the BPC and reach adjust being placed after the pivot, but is it actually longer? I know it's longer than a Tech 3, but...in comparison to other modern brakes without a servo?

"It's a new brake lever!" - meh.

"It comes in sparkly colours" - wait, no, I'm in!

"And here's the price" - fffffffffffuuuuu...

Surely distance X force at the lever = distance X force at the caliper.

That's not how pressure works.

You're having a barbecue and you invite your semi-pro rugby player mate round with his petite supermodel girlfriend. He's wearing trainers, she's in stilettos, which one is going to make the biggest mess of your lawn?

Never mind new levers. Where are the old stock Tech 3 being sold off cheap?

So 30% more power

apparently 20% from redesigned levers and 10% comrs from organic race pads- so a cheap way to upgrade tech3

Would the tech 3 levers work with a SRAM code caliper? I really like my code brakes but the feel at the lever has too much lever throw...I've adjust the rsc lever but still not got it adjusted enough as I like a short lever throw.

Would the tech 3 work? I had these previously and loved the levers as they were properly adjustable.

My Sons running hope xc levers and guide calipers so can't see why not..

Depends on who's packing down with them

You’re having a barbecue and you invite your semi-pro rugby player mate round with his petite supermodel girlfriend. He’s wearing trainers, she’s in stilettos, which one is going to make the biggest mess of your lawn?

Be a nice host and let them use the toilet?

That’s not how pressure works.

You’re having a barbecue and you invite your semi-pro rugby player mate round with his petite supermodel girlfriend. He’s wearing trainers, she’s in stilettos, which one is going to make the biggest mess of your lawn?

The hydraulics are just a mechanism for transfering the mechanical advantage.

What do you think the pressure difference is between the hydraulic fluid just behind the master cylinder piston and that just behind the caliper piston?

@Cougar, depends if he’s going to start a scrum

when testing have a look at calliper flex? as i have a set of v4 and you can see the calliper flex and bulge when you apply the brakes and squeeze. you will find that is where a lot of brake power is lost.

Evocycles have some tech3 discounts, its weird how the press haven't had some samples to verify the power claim before public release, I wanna see the underside of the lever for shifter adapter set up.

Will be interesting to see how they play against the Tech 3s, with a stated 20% increase in power due to the increase in pressure, that'll change the modulation a bit, if the pads are adding 10% i'd expect to see some data of that with the Tech 3s as well?

Think it'll be a few more years until i try Hope again, not out of anything bad, i just like 1 finger levers and brakes, so have pretty much been Shimano or Magura the last 5 years.

I thought the fashion police banned purple many years ago?

That’s not how pressure works.

It is when you link it together with geometry.
Volume displaced is area of piston x travel.
Pressure is force / area of piston.

So, with the same calliper, you can increase braking force by increasing pressure, so reduce area of the master cylinder piston. But you need to displace the same volume to engage the pads on the disc surface so you need to move the piston at the master cylinder further.

I love it when folks display their ignorance. I've done it myself.

I’d like to know if the new pistons in the calliper are compatible with current E4s.

I asked them this, they said they are backwards compatible. So new e4/v4/x2 pistons fit their respective previous generations.