Help! Fitting TSDZ2 on a bike with internal cables and hoses

[IAmNotABear]

Hello, I am new here and I'm really impressed with the pedelecs community that guided me through my research, however I wasn't able to find a solution to my problem either here or youtube (maybe I used the wrong keywords?)

I am planning to fit my Specialized Sirrus 2.0 with a TongSheng TSDZ2B as it seemed like a perfect bike for a conversion, I am worried however that I might not have enough clearance between the top of the motor and bottom of bracket shell for the derailleurs and hydraulic hoses cables, as these cables are going internally and leave at the bottom of the down tube.

I am not too worried about moving the cables around as it seemed easy enough, but I am worried about the hydraulic hose as it seems like a complicated process to replace the hose and require a lot of special tools.

Do you think the motor will fit? if it doesn't is there any way I can make it fit without moving the hose?

I attached pictures of my bike, apologies for the dirt.

 

[Az.]

Do you think the motor will fit? if it doesn't is there any way I can make it fit without moving the hose?

Most likely it won't fit. I used dremel on my bike.

 

[matthewslack]

I don't think it will fit, but you should not be scared of rerouting the hydraulic hose. All you need is a new nipple and hose insert, although often the existing one will reseal OK, and a bleed kit, and some of the right kind of brake oil or fluid. Only a few £ or € or $, and half an hour of careful work.

 

[harrys]

I would hate to dremel a nice bike even though it's cosmetic. I've rerouted mechanical lines, bled hydraulic lines, but have yet to break and re-install a line, I would do that first.

Does the ToSeven DM02 have more clearance to the downtube?

 

[IAmNotABear]

Most likely it won't fit. I used dremel on my bike.

I see, I actually don't mind somr filing especially that the bike is relatively inexpensive.
is that your cable and house going around the motor instead of above it?

 

[IAmNotABear]

I would hate to dremel a nice bike even though it's cosmetic. I've rerouted mechanical lines, bled hydraulic lines, but have yet to break and re-install a line, I would do that first.

Does the ToSeven DM02 have more clearance to the downtube?

dremeling might be necessary for this one even if i move the hoses because of the cable exit ramp.. I don't like dremeling my bike but the bottom will be invisible anyway

 

[matthewslack]

You could buy a cheap second hand brake on ebay to practice on.

 

[Az.]

is that your cable and house going around the motor instead of above it?

To make you feel better this bike was brand new and £1000 RRP.

I butchered frame of my MTB even more to install TSDZ8.

 

[IAmNotABear]

You could buy a cheap second hand brake on ebay to practice on.

Unfortunately I have no space to store it otherwise i'd be happy to do it.

 

[Raboa]

Could you buy some frame hose clips and make your cables externally routed.

I don't know if this would help in anyway, I have not used them.

Hydraulic Brake Line Coupler — TI CYCLES FABRICATION

HYDRAULIC BRAKE LINE COUPLER Extend hydraulic brake lines for all applications, road, gravel, mountain, tandem and cargo bikes for internal and external routing. Intended for use with standard 5/5.5mm OD hydraulic brake line. --- STANDARD kit recommended for Shimano, TRP, Magura, Campagnolo

www.ticycles.com

 

[IAmNotABear]

To make you feel better this bike was brand new and £1000 RRP.

I butchered frame of my MTB even more to install TSDZ8.

I'd say it's a worthwhile sacrifice

 

[IAmNotABear]

Could you buy some frame hose clips and make your cables externally routed.

I don't know if this would help in anyway, I have not used them.

Hydraulic Brake Line Coupler — TI CYCLES FABRICATION

HYDRAULIC BRAKE LINE COUPLER Extend hydraulic brake lines for all applications, road, gravel, mountain, tandem and cargo bikes for internal and external routing. Intended for use with standard 5/5.5mm OD hydraulic brake line. --- STANDARD kit recommended for Shimano, TRP, Magura, Campagnolo

www.ticycles.com

Thanks for the suggestion, I will give it a try if the motor doesn't fit, it will be here in a few days.
I'll post an update here in case someone else might find it useful

 

[Az.]

I'd say it's a worthwhile sacrifice

Absolutely. I see it not as a destruction of an old bike, but as a creation of a new one. Regardless if you reroute cables or not, you might need to dremel frame anyway. I had to file frame, file bit of a motor (to improve chainline) and... open motor to install it. It was a lot of work, but at the end motor was a perfect fit and no additional bracket was required.

 

[AndyBike]

Couple of points on internal hoses/cable housings/wires etc is they'll rattle against the frame and you will find that as annoying as everyone else does. The other is they are a complete barsteward to fit or replace.
One other problem is if say for example as the wire is rattling away inside it gets a wear point exposing it and causing a short, its going to be impossible to find without puling them a;l out to check individually.

The best thing is to route them neatly. You can cover joints with shrink tubing, and theres little stick on hose/housing mounts available.

 

[Az.]

One other problem is if say for example as the wire is rattling away inside it gets a wear point exposing it and causing a short, its going to be impossible to find without puling them a;l out to check individually.

I have three bikes with internal cables and nothing is rattling. No shorts either (we are talking about brake and derailer cables)