Given the much increased braking efficiency with a hydraulic disc (and my being ignorant of the deails of trikes) why can't you run with just an hydraulic disc up front, amybe just a larger than usual (180mm say) one? Why the (need for the) secondary mini-V?
Construction and use regs a cycle has to have two independent brakes. Bicycle front and back wheel , trike just the front ~in19xx rear brakes on trikes were unusualAlready answered thank you to LWaB
Fork material and design, and that of the mount between fork and caliper are also critical for quietness IMO. I don’t think steel forks lend themselves well to discs, and on a trike steel might be even worse. Unless you want a fork that doesn’t bend.
My experience - recently built trike with 180 mm rotor, cable hydraulic calliper, plus mini V on a custom fork with oversized 631 blades and 10mm thru axle. Like everything Geoff does a work of art in steel
Geoff booker ( of trykit fame) has done a number of steel disc forks . But it is virtually imposable to get the same compliance as a none disc fork . Aiden.f trike has a very forgiven ride ,but it is fitted with tubeless tyres , I just don't want the hassle & expense of those
The fork still has a lot of compliance - I can see it flexing, obv. not as much as my V-brake front / rear disc trike but enough to IMO be fine with a 32C tubed tyre
Brake performance is excellent - happy to descend Talla Linn, just ridden the Chevy Chase route and Killhope Challenge (Grimpeur) - you just have to be aware that the front tyre is doing a lot of work.
Reliability: Geoff fits Acor cable/hydraulic, not available retail but I think pretty generic from a look at ebay. There is a manual wear adjustment which I rarely need to touch.
After winter storage I found one piston frozen (not obvious BTW) had to remove the caliper, run a drip of hydraulic oil round the seal and work it to and fro with a metal block in place of the pads
I have a bleed kit needed for a set of TRP HyRd's. I expect to use it as a routine after a year or so. Colin - you may have a loan
I am getting a bit of noise from spoke crossings when cornering now - the wheel is is of course dished and maybe spokes are a bit slack now.
No noise at all when braking.
I will be using an 8 speed / triple gear set up on friction levers . BUT if I could find matching drop bar levers one which runs cable and one which runs hydraulic , I could run a hydraulic disc calliper
as above cable hydraulic is your solution..
I have changed from 10 Speed bar ends to 105 STi triple (Spa Cycles) Silver though is still out of stock (forever) Colin do you want my bar ends? I do find that 10 speed lasts onna trike, good chainline and no rear wheel crud.
you could pair with these..Just your style and reduced at Spa from £80 to £45