Trike wheels

rorschandt wrote in
. 4.11:


See http://pictures.care2.com/view/2/501192220
and a more blatant version http://pictures.care2.com/view/2/816427344
Does that last one look familiar? (^:


Do you have a problem with the mid-drive derailleur hitting the ground when
you cross speedbumps and such?


Cheers,
Rorschandt
"Had I known for the past few years I would end up with a design like a
Dragonflyer, I would have just saved my time and money and bought one."

Yes, but think of all the fun you've had reinventing the wheel. :P


-Bill Hamilton

rorschandt wrote:

See http://pictures.care2.com/view/2/501192220
and a more blatant version http://pictures.care2.com/view/2/816427344
Does that last one look familiar? (^:

You probably meant "recumbent designers at current manufacturers" or
similar.

Cheers,
Rorschandt
"Had I known for the past few years I would end up with a design like a
Dragonflyer, I would have just saved my time and money and bought one."
~r.

The rear end of the Psycle is similar, but the Dragonflyer has an
integrated pannier rack and lacks the selectively bred wolf.

The Care2.com banner ad implies that all the members are penguins.

Tom Sherman - Quad Cities USA (Illinois side)

Tom Sherman wrote in
:

grated pannier rack and lacks the selectively bred wolf.

The Care2.com banner ad implies that all the members are penguins.


Aren't they?

rorschandt

On 1 Aug 2003 12:21:47 -0700, (Jeff Wills) posted:

"Moosh:]" wrote in message . ..
snip

As this will be multiplying a 15 speed deraileur, that will give me 60
ratios to play with. Plenty to keep my tiny brain amused

You're combining a 15 speed derailleur system with a 3 speed internal
hub?

No, the FW is a four speed. (FW = Four Wide)

That's 45 speeds- and it's a tough proposition. The parts are
meant to be combined- you'll have to figure out how to fit the cogs on
the hub, extend the axle, figure out how to shift the hub, etc. etc.
It's not impossible- but other setups like this have been built by
very experienced bike mechanics. It's not something I'd attempt on my
first trike.

I'm using and intermediate shaft.

On Fri, 01 Aug 2003 20:28:24 GMT, Bill Hamilton
posted:

(Jeff Wills) wrote in
. com:

"Moosh:]" wrote in message
. .. snip

As this will be multiplying a 15 speed deraileur, that will give me
60 ratios to play with. Plenty to keep my tiny brain amused

You're combining a 15 speed derailleur system with a 3 speed internal
hub? That's 45 speeds- and it's a tough proposition. The parts are
meant to be combined- you'll have to figure out how to fit the cogs on
the hub, extend the axle, figure out how to shift the hub, etc. etc.
It's not impossible- but other setups like this have been built by
very experienced bike mechanics. It's not something I'd attempt on my
first trike.


Though it should be fairly easy using a mid-drive setup. Get a 7-speed
freewheel, replace the largest cog with a small chainring (or just leave
it). Align that gear with the cog on the 3-speed wheel, and mount a
derailleur for the bottom five gears for the crank/mid-drive chain.
Hardest part would be converting the freewheel to spin both directions
and then mounting it to the frame securely.

Biggest concern is to mount the mid-drive so that it doesn't contact the
ground; without the protection of the wheel, your derailleur could easily
strike the ground and mess up your day real quick.

Thanks for the helpful advice, but I will be driving one of the front
wheels of a rear-steer tadpole. I will be using an intermediate shaft
ahead or the driven front wheel, (the one with the four speed hub),
and this will have one cog on one end to drive the wheel, and a rear
derailleur cluster on the other driven by the 3-chain-wheel pedal set
sticking out the front as per normal.

-Bill Hamilton hasn't been planning a trike for his next project, nosiree
he hasn't.

Fun

"Moosh:]" wrote:

Suspension seems to me a luxury when you have suspension qualities in
the tyres, seat and frame to a small extent. And I'm not planning on
off-bitumen.

With three wheel tracks instead of one, it is very hard to avoid bumps
and potholes on a trike. With rear suspension it is only necessary to
straddle such pavement deformities with the front wheels.

Tom Sherman - Quad Cities USA (Illinois side)

"Moosh:]" wrote in
:


Suspension seems to me a luxury when you have suspension qualities in
the tyres, seat and frame to a small extent. And I'm not planning on
off-bitumen.



A car has "suspension qualities" in the tires, frame and seat as well. I
certainly wouldn't want to ride in one that doesn't have shocks. At least
not on the roads around here.


-Bill Hamilton

On Sun, 03 Aug 2003 13:02:57 GMT, Bill Hamilton
posted:

"Moosh:]" wrote in
:


Suspension seems to me a luxury when you have suspension qualities in
the tyres, seat and frame to a small extent. And I'm not planning on
off-bitumen.



A car has "suspension qualities" in the tires, frame and seat as well. I
certainly wouldn't want to ride in one that doesn't have shocks. At least
not on the roads around here.

But then four wheels are not always in contact with terra firma,
whereas three always can be. And of course cars will travel habitually
much faster than I will.

The springs absorb the hit, the shocks control the rebound of the spring so
you don't bounce. One without the other doesn't make a good suspension.
"Bill Hamilton" wrote in message
.6...
"Moosh:]" wrote in
:


Suspension seems to me a luxury when you have suspension qualities in
the tyres, seat and frame to a small extent. And I'm not planning on
off-bitumen.



A car has "suspension qualities" in the tires, frame and seat as well. I
certainly wouldn't want to ride in one that doesn't have shocks. At least
not on the roads around here.


-Bill Hamilton

Diamondback makes 3 flavours of 48 spoke, 14mm axle wheels. I can buy the
single wall black wheels for about $40 Cdn, the double walled chromies (high
rim wall) for about $50 Cdn and some cool black double wall aeros for about
$80. I weight ~230 lbs and regularily ride around on two wheels on my
trikes and have had no problem with the front wheels at all. I'm more
worried about the taco tendencies of my rear 26"ers.

These same rims come in rear hub versions and you can spin any
cassette/freewheel on it you want. If you're looking for more gearing than
a single derailer set, hook up a mid drive but make sure you give yourself
at least 6 or 7" of ground clearance for your mid drive derailler.

"Moosh:]" wrote in message
...
Hi folks. I'm dreaming of building a trike (that's code for designing
in my head I'm thinking of using 20" BMX wheels as they are pretty
tough. Someone on another group thought bike wheels might not be able
to take the side thrust of a multiwheeler, as they don't have to take
much of this on a two wheeler. Seeing some of the BMX stunts I
wouldn't be surprised it they can take a fair bit of side thrust.

I also want those old tyres with circumferential ribs so that when
pumped hard, only one thick rib touches the tarmac. Seems they are not
very popular in these days of go-anywhere knobblies on mountain bikes.
Any suggestions? I would also like one wheel with a three-speed hub
gear in it. Any ideas what bikes may come like this? I know there are
20" mountain bikes, but they come with knobblies and deraileurs from
what I can see. Maybe I just have to bite the bullet and get a LBS to
make me up some wheels.