5 speed bar end shifters?

[PhilDawson8270]

hi.

My dad is building himself a trike as medical conditions make a regular bike difficult to operate.

As somebody who enjoys building things he is making his own from scrap bikes rather than buying.

He wants to use a single bar end shifter for his gears as the steering layout makes grip shift awkward. It is a 6 speed shimano cassette, with 1 gear being used permanently for drive to the rear wheels. So does a 5 speed bar end shifter exist?

 

[raleighnut]

With Shimano bar ends you can switch the indexing off. I'd be more concerned about running the gears like that though, the 2 chains won't run on adjacent sprockets as there isn't the clearance between them. @voyager may have a better solution as to how to run the gears but my trike uses a sprocket welded to the flange of the (geared) intermediate hub, maybe these can be purchased.

 

[iandg]

Diacompe do a non-indexed/friction bar end shifter.

http://www.wiggle.co.uk/dia-compe-bar-end-gear-shifter-set/

 

[Yellow Saddle]

hi.

My dad is building himself a trike as medical conditions make a regular bike difficult to operate.

As somebody who enjoys building things he is making his own from scrap bikes rather than buying.

He wants to use a single bar end shifter for his gears as the steering layout makes grip shift awkward. It is a 6 speed shimano cassette, with 1 gear being used permanently for drive to the rear wheels. So does a 5 speed bar end shifter exist?

That chainline spells trouble.

 

[raleighnut]

That chainline spells trouble.

I think the angle the photograph is taken from exaggerates the angle of the chain to the rear axle.

 

[voyager]

I used a similar method on the early 20/20 e-trike BUT and there is always a but I used a 6 speed stripped it down and moved the cogs about a bit , end result was a 4 speed freewheel and a space between the output cog - worked well for 5 or 6 months before the upgrade .

https://www.cyclechat.net/threads/building-a-couple-of-20-wheel-tadpole-e-trike-from-scratch.166210/

or
http://forum.atomiczombie.com/showthread.php/8860-The-new-20-20-e-trike?highlight=20/20+e-trike
more detail

regards emma

 

[PhilDawson8270]

I think the angle the photograph is taken from exaggerates the angle of the chain to the rear axle.

Correct. The chain is running straight.

I will get more photos when I feel like moving (see other thread)

 

[PhilDawson8270]

With Shimano bar ends you can switch the indexing off. I'd be more concerned about running the gears like that though, the 2 chains won't run on adjacent sprockets as there isn't the clearance between them. @voyager may have a better solution as to how to run the gears but my trike uses a sprocket welded to the flange of the (geared) intermediate hub, maybe these can be purchased.

View attachment 350587

My dad said he managed to separate the gears and there is clearance for both chains.

 

[PhilDawson8270]

Diacompe do a non-indexed/friction bar end shifter.

http://www.wiggle.co.uk/dia-compe-bar-end-gear-shifter-set/

I shown him this, he objects to the price

It's a scrap metal bitsa bike. But this kind of stuff is beyond my experience.

Clever cheap solutions are welcome.

My idea was an old down tube shifter

 

[Wobbly John]

I'd only expect you to get 4 speeds at the most - the chains would colide if they were on adjacent sprockets.
If it is a six speed block, you need a six speed bar end shifter and set the limit screw on the rear mech to limit it from reaching the largest (or largest) sprocket. Set the cable length so 1st on the shifter is the lowest gear you are using and it will work - but your last 2 clicks on the shifter won't do anything.

 

[boydj]

The Dia-Compe shifters are very similar to down-tube shifters - I have them on one bike. It should be easy to get hold of an old down-tube shifter off a scrap bike or perhaps from a bike shop parts bin.

 

[voyager]

any bar end shifter that can be converted to friction can be used in friction mode

regards Emma

 

[voyager]

the cheaper solutions can be found on the atomic zombie forum , there are several solutions to making a bar end changer but most will involve welding or machining .
I chopped a handle bar lever about and welded it to a piece of bar that fitted inside the handlebar , secured with a st screw .