Any ideas please?
Cheers.
How long is a piece of string? Moto or euro set up? Headtube length? Bar width? Stem length? 29er or 27.5? Looking to order a length and trim, or trying to get it spot on?
On a large, I'll normally start with 1m and trim to suit.
Fair point, a lot of factors which I need to look at.
RH lever & 27.5.
Been out of the game for a while so pretty rusty on a lot of things.
Cheers.
I tend to fit the full set-up (lever, hose, caliper) and then adjust hose to the appropriate length followed by a bleed. I see quite a few bikes with what I consider to be overly long hoses that clutter the cockpit, possibly the result of installing pre-bled brakes. I need to sort out my recently purchased bike regarding this, the hoses are far too long; the shed is a bit too cold for doing this at the moment though.
How long is your head tube?
How wide are your bars?
How many stem spacers do you have under your stem?
What angle do you run your brake levers at?
Do you run your brake levers butted up to your grips, or inboard somewhat, and if inboard, how far inboard?
Unless you're freakishly proportioned, I'm pretty confident it will be less than 900mm long, but how much less is another matter... The "how long is a piece" of string response, is the most accurate...
Simple answer... That's why brakes come from the factory with hoses that are too long, and then you dry fit the brake to the bike with everything where you want it, before you then measure twice and cut the hose once, at exactly the length it needs to be to fit...
I'd say 900mm with an 800mm bar and sensible head tube length
I bought TRP brakes from Merlin with a 900mm front hose. They were 'just' OK on a 800mm bar on a 170mm fork.
Thanks folks.
As above, 900 seems to be about average, but bar width, bar sweep, lever angle, etc. will all make a difference.
I recently fitted some alt bars with a 25° back sweep to a bike, and it meant that the 900ish mm front hose was suddenly about 50mm too short.
I'd always err on leaving a bit extra lengthwise on the hose for future fettling.
I see quite a few bikes with what I consider to be overly long hoses that clutter the cockpit, possibly the result of installing pre-bled brakes.
This bugs me, people show off their pride and joy and I look at the hoses and shudder.
I have a bit of OCD about my cables/hoses
OP, I'll measure some of mine when I go in the shed later
I'd always err on leaving a bit extra lengthwise on the hose for future fettling.
My Levo obviously came shipped with a US brake set up, seeing as the rear hose enters the frame on the wrong side. Which annoys the hell out of me.
When the shop swapped the front to the right side it made it just about long enough. Them me switching from 780mm 30mm bars to 800mm 50mm, it's not the best aesthetically. I may sort it all at some point because I don't like looking at it. 😖
