Author Topic: 11 speed MTB XT front shifter with road FD on a RWD 2 wheel recumbent?  (Read 777 times)

Hi - I asked this question on the general forum:

Shimano 11-speed road Front Shifter compatibility with 11-speed MTB shifters?
https://yacf.co.uk/forum/index.php?topic=117561.0

On a RWD two wheeled recumbent (Schlitter Freestyle), which has a long (2.5 times normal length) chain (so in theory the chain angle should never be that steep), would the front shifting be acceptable if using a  11-speed Shimano XT M8000  i-spec II left shifter with a Shimano 105 R7000  front derailleur and 105 R7000 50/34 chainset? Or would it be better to use a road flat bar shifter for the front/left? e.g.  SL-RS700: https://bike.shimano.com/en-EU/product/component/105-5800/SL-RS700.html
Old enough to know better, but young enough to do it anyway

fd3

Re: 11 speed MTB XT front shifter with road FD on a RWD 2 wheel recumbent?
« Reply #1 on: 21 November, 2020, 03:55:36 pm »
I believe you need different pull for road and mtb fd with Shimano.  Not sure but I thought sram is the same for both.
Strange things are afoot at the circle K.

Re: 11 speed MTB XT front shifter with road FD on a RWD 2 wheel recumbent?
« Reply #2 on: 21 November, 2020, 04:08:25 pm »
I run friction both front and rear on my recumbent , which is compatible with everything. I see you are getting appropriate responses on your other thread.

ElyDave

  • Royal and Ancient Polar Bear Society member 263583
Re: 11 speed MTB XT front shifter with road FD on a RWD 2 wheel recumbent?
« Reply #3 on: 23 November, 2020, 07:09:01 am »
I had sucessful shifting on my M5 with a similar setup, it was a 50-34 on the front, 3-sp front shifter was Shimano MTB, can't remember which FD. 

Rear was mtb all the way, 11-sp.

I can have a look back through my records if you like?
“Procrastination is the thief of time, collar him.” –Charles Dickens

Re: 11 speed MTB XT front shifter with road FD on a RWD 2 wheel recumbent?
« Reply #4 on: 23 November, 2020, 07:52:52 am »
I had sucessful shifting on my M5 with a similar setup, it was a 50-34 on the front, 3-sp front shifter was Shimano MTB, can't remember which FD. 

Rear was mtb all the way, 11-sp.

I can have a look back through my records if you like?

Thanks, if you could that would be great, would be useful to know.
Old enough to know better, but young enough to do it anyway

ElyDave

  • Royal and Ancient Polar Bear Society member 263583
Re: 11 speed MTB XT front shifter with road FD on a RWD 2 wheel recumbent?
« Reply #5 on: 29 November, 2020, 07:18:28 am »
From my records

Crankset - SRAM Apex 50/34, 175mm cut down by Mike B
Front mech - Ultegra 6700 double
Rear Mech Shimano XT, didn't note specific model
Casette - 11 sp, SXT 11-40
Shifters - paired XT, again didn't note more specifics.

“Procrastination is the thief of time, collar him.” –Charles Dickens