: homemade leaf spring frontend


greasystain
07-12-2006, 02:12 AM
anyone ever make a leaf spring springer fork fer there bikes? my idea is such:

replace the down tubes with a solid steel bar, make a lower wheel bracket that connects to the front spring bars, then up to the spring thats connected to the lower tree or down tubes.

http://i11.photobucket.com/albums/a175/TheGraves666CC/photochops%20ect/springer.jpg

Moonshiners
07-12-2006, 03:02 AM
i like your thinking! never tried it but let us know how you get on!

SACTO.DONNY
07-12-2006, 03:06 AM
one of the guys i work for made one... i'll see if he will let me post some pics... i dont really like his exicution though...

sumo
07-12-2006, 03:18 AM
some plans here for anyone with $50

they do look really nice though...

http://www.crimescenechoppers.com/leafer_prod.html

51rat
07-12-2006, 10:11 AM
ive seen about 10 in person, most at the car show here that was in the spring... looked ok, all on big motor bikes, never seen one on a trump

greasystain
07-12-2006, 10:19 AM
also, gotta think up a way to mount a shock on top of leaf maybe.

51rat
07-12-2006, 10:34 AM
never seen one with a shock too

greasystain
07-12-2006, 10:38 AM
never seen one with a shock too

shocking isnt it.... HAHAHA:D

Creepinogie
07-12-2006, 11:09 AM
The original ones on Indians were trailing link which handle alot better than leading links. The leaf would go down on bumps rather than up. You should be able to get a spring from anyplace that sells trailer stuff and cut the leaf in half. I got a leaf spring front end on my chief and I really like it.

Slipkid
07-12-2006, 01:16 PM
The original ones on Indians were trailing link which handle alot better than leading links. The leaf would go down on bumps rather than up. You should be able to get a spring from anyplace that sells trailer stuff and cut the leaf in half. I got a leaf spring front end on my chief and I really like it.

Can you post some pics of it so we can take a look at how it works. I like that arrangment but never had a chance to really study one.

jbfrmca
07-12-2006, 07:54 PM
Can you post some pics of it so we can take a look at how it works. I like that arrangment but never had a chance to really study one.
here's a couple of pics for you. i really dig these front ends and plan on building one for myself sometime in my lifetime. would like to see what you come up with. keep us posted.

Creepinogie
07-12-2006, 10:01 PM
Here's a photo of mine:

http://www.landstromsfoundry.com/Images2/Gallery/38ChiefBobberLarge.jpg

The neat thing about trailing link is the front links work under tension so you don't have to worry about an l/r ratio and the material is stronger undertension than compression like a springer. Also because it's trailing link, the wheel always tracks true even when the bushings get all worn out. Kiwi Indian makes them but they are pretty spendy. I don't see why anyone couldn't make their own.

Slipkid
07-13-2006, 03:22 PM
Creepinogie - Thanks for the picture. Now I understand what you meant about the spring going down under load, and the trailing aspect too.

Great looking bike you got there. That's kinda the look I'm after one of these days. cough-cough-cough... I keep coughing but no cash comes out. Better start saving up I suppose.

Sporticus
07-13-2006, 07:23 PM
http://www.crimescenechoppers.com/tubeleafer-small.jpg

thankful
07-13-2006, 09:40 PM
Here's a photo of mine:

http://www.landstromsfoundry.com/Images2/Gallery/38ChiefBobberLarge.jpg

The neat thing about trailing link is the front links work under tension so you don't have to worry about an l/r ratio and the material is stronger undertension than compression like a springer. Also because it's trailing link, the wheel always tracks true even when the bushings get all worn out. Kiwi Indian makes them but they are pretty spendy. I don't see why anyone couldn't make their own.


Wow that is a great looking bike.

I am also interested in a front end like that. I have seen the Kiwi ones - but man they are pricy. There has to be someone else out there that makes these things more resonable.

Anyone know?

Thanks,

Creepinogie
07-13-2006, 10:00 PM
An original Indian springer goes for about $1500. But they made several styles, smaller ones on the 101 scouts and at least two versions for the chiefs. 1940 and later cheif ones where a little wider, they added some leaves to the springs in 39 and I'm sure someone more knowledgable than me knows more about them You can also buy a European copy of an Indian springer from Indian parts europe. A cool dude named Moen runs it but the springerws are made in Germany. Personally if it were a custom, I'd make it.

thankful
07-14-2006, 07:03 AM
An original Indian springer goes for about $1500. But they made several styles, smaller ones on the 101 scouts and at least two versions for the chiefs. 1940 and later cheif ones where a little wider, they added some leaves to the springs in 39 and I'm sure someone more knowledgable than me knows more about them You can also buy a European copy of an Indian springer from Indian parts europe. A cool dude named Moen runs it but the springerws are made in Germany. Personally if it were a custom, I'd make it.


Wow - great stuff.... Thanks for the info here.

Danny F.
07-14-2006, 07:55 AM
All great stuff, as long as you don't mention the "Leaf Springer"...WTF..!!!:eek:

(this was 1997)

thankful
07-14-2006, 07:59 AM
Wow - great stuff.... Thanks for the info here.


Let me ask you this, Do you know anyone that would make a set custom?

TurboRoadster
07-14-2006, 09:02 AM
^^ I'm gonna fab one up and let ya know how it goes, I'll post pics up hopefully next week or so, depends on workload

Moonshiners
07-14-2006, 09:13 AM
All great stuff, as long as you don't mention the "Leaf Springer"...WTF..!!!:eek:

(this was 1997)


hahahahahahahahahahaha - Oh man seeing that made my day!

That's gotta handle worse than anything i've ever seen! oh don't get me started... hahahaha....

sumo
07-14-2006, 09:29 AM
i was thinking about getting myself a set of them untill ou all started mocking... best not get them now then if everone will take the piss... ha ha

Panshowa
02-12-2011, 03:35 PM
Itīs quite easy to DIY, if you own a lathe, pipe bender and tig. Hereīs mine:
http://i1097.photobucket.com/albums/g355/Noskoolfab/DSC00288.jpg

Destralo Roach
02-12-2011, 03:39 PM
Nice!!! You have some good details going on there!!!

theageofindustry
02-12-2011, 04:19 PM
I was just thinking what a car wreak leaf springers look like on bikes and than you had to go and trump me. All the right stuff in all the right places.

TurboRoadster
02-12-2011, 07:29 PM
looks like its set up to pull down, reckon the top leaf doesnt do much.
looks nice, any advantage or preference for pushing up or pulling down? basically rim location on rocker changes that.



Itīs quite easy to DIY, if you own a lathe, pipe bender and tig. Hereīs mine:
http://i1097.photobucket.com/albums/g355/Noskoolfab/DSC00288.jpg

rgf
02-12-2011, 08:37 PM
bastybikes (http://www.bastybikes.com) fab this (hand made)

http://www.bastybikes.com/usrimg/Bastybikes%20leaf%20spring%20fork%20shovelhead%200 4.jpg

gearhead1951
02-13-2011, 03:50 AM
Turbo , even on the stock Indian version there is a leaf (or 2) that are in there to be "rebound" springs !!

el diablo
02-13-2011, 05:51 PM
don't buy the ones from ebay from Rich Philips ....do a search here on the JJ for those

all fucked up leafer for way to much money ...and he didn't dealt with the guy who got the F#CKED UP leafer that R.philips made

TurboRoadster
02-13-2011, 06:52 PM
Turbo , even on the stock Indian version there is a leaf (or 2) that are in there to be "rebound" springs !!
ah ha! thanks!

BIG JD
03-15-2012, 09:10 PM
hey man great job on that front end where did you get plans from? i'm interested in building one myself , any help with blueprints would be appreatiated cheers JD.

iflybyu
03-15-2012, 09:31 PM
Very Nice

billyfly
03-15-2012, 10:07 PM
http://i639.photobucket.com/albums/uu116/billykerchner/xs13.jpg

greasystain
03-17-2012, 05:02 PM
dang that last one is sweet. the spring sits a bit far out front tho for my tastes, but hell yeah.

twowheeledhell
03-17-2012, 05:54 PM
dang that last one is sweet. the spring sits a bit far out front tho for my tastes, but hell yeah.


+1 on that......the spring action likely depends on length, and relation to where strut is located on rocker (angle) to pivot on the spring-maybe you can start pulling it back some as you go-the shorter the stiffer the action should be as well-or could change leaf sizes. Otherwise looks like it's off to a good start.

Justen

billyfly
03-17-2012, 06:01 PM
+1 on that......the spring action likely depends on length, and relation to where strut is located on rocker (angle) to pivot on the spring-maybe you can start pulling it back some as you go-the shorter the stiffer the action should be as well-or could change leaf sizes. Otherwise looks like it's off to a good start.

Justen
thats the plan...better long to start!...billy

Friday
03-18-2012, 01:52 AM
those panshowa forks look good. heres some plans for leaf forks. theyre CHB

http://mantaraygraphics.com/leaf.html

worn
03-18-2012, 02:36 AM
All great stuff, as long as you don't mention the "Leaf Springer"...WTF..!!!:eek:

(this was 1997)

This was in a show here in Toronto '70 or '71

Jeff L
03-18-2012, 10:35 AM
thats the plan...better long to start!...billy

I dont think you will change much by shortening that spring.You might find it better to set the length of spring where you want it, then experiment with ride by adding or subtracting springs above or below main spring for shock & rebound.

chipmcluk
03-19-2012, 04:02 AM
http://i195.photobucket.com/albums/z190/chipmcluk/Bikes%20cars%20things/DSC01479-1.jpg
http://i195.photobucket.com/albums/z190/chipmcluk/Bikes%20cars%20things/DSC01482.jpg
http://i195.photobucket.com/albums/z190/chipmcluk/Bikes%20cars%20things/DSC01493.jpg
http://i195.photobucket.com/albums/z190/chipmcluk/Bikes%20cars%20things/DSC01883.jpg
Picture links broke on the other thread.

gearhead1951
03-19-2012, 06:13 AM
Plans for this and other types of forks are at www.chopperhandbook.com (http://www.chopperhandbook.com) !

AndrewC
03-19-2012, 11:13 AM
Hope this thread stays alive for a while, I never really had an affinity for the leaf spring front end until recently, I saw what Paughco was doing with the repro's and thought "man I really like those front ends but thats a ridiculous price", Looking through the replies there are some really nice home brewed leafers out there that are awesome! - Drew

Friday
03-19-2012, 04:46 PM
chipmcluk = nice forks and the bike looks interesting , the photos on other thread gonna!
cant see the frame .

heres another option ..indian indian forks , count ya rupees!
god knows if they use a Jig for alignment or what metal they use.
the forks you see at swap meets just may not be genuine indian ,these have been floating around for a while.

http://vintageautoworld.trustpass.alibaba.com/productshowimg/112127390-101257158/Indian_Chief_Scout_Pony_vintage_American_motorcycl e_reproduction_front_chief_military_leaf_spring_fo rk.html

chipmcluk
03-19-2012, 08:41 PM
Frame is preunit hardtail, lowslung with plenty of room for everything.
http://i195.photobucket.com/albums/z190/chipmcluk/Bikes%20cars%20things/DSC01972-1.jpg

Jeff L
08-24-2012, 07:17 PM
Thought Id bring this back...here's what I've been workin on.

gearhead1951
08-25-2012, 04:31 AM
AHH Yes !! The "Unholy Virgin" !! Good work there dude !

servi53
08-25-2012, 02:20 PM
Chip and Jeff those look great

rustirpyles
08-29-2012, 09:59 AM
Always wanted to build a leafer, printed the plans off choperbuildershandbook. but like most things got distracted by somthing else and forgot about it. this thread might get me going again.

Friday
09-28-2012, 04:03 AM
for those who give a stuff..... part1

Indian fork rocker #24-B-80 = 1924 scout, same as later rocker dimension

widest point of centre cast = 1 3/16 wide
counter sunk in centre cast = 3/4 d x 5/8 x 1 L bush
front end cast = 5/8 wide
front end = 3/4 d x 5/8 x 5/8 L bush
Axle cast = 5/8 wide
Axel hole = 7/16

Friday
09-28-2012, 04:13 AM
from centre stud hole to centre front hole = 2 5/32
from centre stud hole to centre of axle hole = 1 29/32
from centre axle hole to centre of front hole = 4 1/32

basic body shape = 1 1/16 high x 1/2 thick x 5 long(end stop not included)

the 2 front hole centres =13/16 from the bottom profile straight edge
the 2 front holes are level to each other

the axle hole centre is 7/32 from the bottom profile straight edge

actual measurements taken off the bushes when half removed/protruding and used as solid reference points

repop studs are available

plan on doing fork dimensions at a later date.

Friday
10-05-2012, 03:24 AM
Indian inline scout forks, early scout forks are shorter than 1928 up 101 forks.

measured face down on steel bench top with stem raised parallel to bench. other measurements are 90 degrees from that , relative to the centre line of the stem.

OAL = 25 1/4
top of stem to axle centre = 24 3/4
Axle centre to stem centre line = 4 11/16

Tree
main cast = 7 3/4 x 3 deep (front supports extend 1 1/4)
over all width = 7 3/4 x 4 1/4 x 1 thick at the main legs
centre to centre = main legs to front legs = 2 1/4
" " = main legs = 6 1/4
" " = front legs = 6 1/8
front supports = 1/2 up from bottom of tree, 5 gap between supports
" " = 3/8 thick

Friday
10-05-2012, 03:33 AM
machined bearing surface and spring recess used as ref.

bearing surface to bottom of tree = 1 7/8 height
" " to spring recess = 3/4
spring recess = 2 wide x 3 deep
" " to end of fork leg = 17 5/8
" " to axle centre = 17 1/8
" " to bottom of tree = 1 1/8
" " to top of stem = 7 5/8

main legs centre to centre = 4 9/16 at top
" " taper from 15/16 to 1 1/8 at tree
" " lower taper from 1 1/8 to 15/16 at axle
sleeves at tree = 1 1/4 dia.
top sleeve = 5/8 long
lower sleeve = 1 1/8 long

Friday
10-05-2012, 03:39 AM
front legs top = 3/4 x 6 1/4 long
" " lower = 3/4 x 15 1/2 long

fork ends = 3/8 x 15/16 solid ,slotted into 15/16 tube ends
width between fork ends = 7 1/4
Axle hole = 1/2 dia (stud hole for rocker)

original stem = 3/4 inside 1 , inside 1 1/4 tube , effectively = 3/8 wall
stem = 6 7/8

Friday
10-05-2012, 03:46 AM
top handle bar cast , early flat sport style 20 - 24

OAL = 9 3/4 x 1 3/8 high x 1 1/2 wide
mid sect = 5/16 thick
leg holes = 15/16
cast for 1 " bars 1 1/2 deep
internal cable holes = 1/4
stem hole = 1 1/8
centre to centre legs = 4 9/16
" " bolt holes = 3 3/16
theres 1/2 surround the stem area
approx 2 1/8 when clamped

dog ate photo! (boss walked in!!)

Friday
10-05-2012, 03:57 AM
article relative to diff lengths even tho they are chief forks.


http://www.indianriders.co.uk/Leaf-Spring%20Forks.htm

Friday
10-05-2012, 11:10 PM
handle bar cast

HRC
10-06-2012, 05:16 AM
good info Friday...thanks. Hans

BigValveX
10-11-2012, 05:56 AM
Hi ... Have built a set of springer forks for an early 1900's BTR...takes time and patience....had the spring made ....dont have the setup to heat and cool the spring to retemper it...specialised job anyway....I still have to reassemble them in a jig I made and braze weld them together...X

little d
10-11-2012, 11:24 AM
cool,
post up more!

el ladron
10-11-2012, 12:22 PM
Heres mine, I didn't build it, but its simple and works great, frequent 80+mph rips with no problems.

BigValveX
10-11-2012, 06:40 PM
Hi.. I used a Suzuki GT500 head stem...has tapered bearings and 1" diameter tube...everthing else is hand made from photos...axle rockers a 1/2" steel profile cut and machine finished in millling machine...clevis point for rocker are machined out of 3/4" square ..spring is custom made....main hoop frame is 1/2" profile cut steel....forks are 1 1/4" tube X 1/8" wall...made a timber profile for the ark of the forks and used pipe bender to shape ....BVX

Friday
10-12-2012, 02:22 AM
nice work there. frames looking good too.

little d
10-12-2012, 11:09 AM
Big,
is the bike done?

Racepres
10-12-2012, 02:04 PM
Could someone tell me if the temper stays in leaf springs cut with a plasma cutter??:confused:
Thanks
RP

BigValveX
10-12-2012, 06:25 PM
Hi..little d...The bike is about half way way through...have made most of the major parts...forks - frame - tanks - seat .. made wheels up from Honda c125 hubs and new 21" alloy rims and spokes to suit....using dunlop 402r tires this will give me about 28" diameter wheel...frame and forks need to be braze welded ...tanks are all tacked together and need to welded up...every thing needs to be assembled to make sure it all fits before I weld it .....BVX

BigValveX
10-12-2012, 06:37 PM
Hi Racepres....I 'm no expert with springs ..I always use the spring works to make or modify my springs.... you should be able to cut it and temper should stay in it....its when you heat to bend is when it changes to tempering process....there is a sequence of heating and cooling in oil that needs to be followed when bending or changing the shape of a spring and retemper it...often someone will reverse the eye on a spring and it will snap off from being britle....they use different heat temperature to bend and then temper...BVX

Racepres
10-12-2012, 07:12 PM
Hi Racepres....I 'm no expert with springs ..I always use the spring works to make or modify my springs.... you should be able to cut it and temper should stay in it....its when you heat to bend is when it changes to tempering process....there is a sequence of heating and cooling in oil that needs to be followed when bending or changing the shape of a spring and retemper it...often someone will reverse the eye on a spring and it will snap off from being britle....they use different heat temperature to bend and then temper...BVX
Thanks for that.
RP

BigValveX
11-05-2012, 02:34 AM
Hi .. Have braze welded the forks together....finished the machine work on the suspension rocker mechanism...assembled to make sure everything is in alignment and moves freely..just need to drill pivots for cotter pins to secure castle nuts...ready to disassemble and paint....BVX

BigValveX
11-05-2012, 10:41 PM
Hi... Heres a pic of the forks in the frame....and the the throttle and magneto lever mechanism setup....BVX

greasystain
11-06-2012, 02:57 AM
cool forks for sure bigvalve

little d
11-06-2012, 11:36 AM
Holy Shit!!!!

tlingit
11-06-2012, 12:31 PM
Hi... Heres a pic of the forks in the frame....and the the throttle and magneto lever mechanism setup....BVX

That's some nice talent right there! Always envied those with this kind of skill...as said previously, "Nice job"!

BigValveX
11-07-2012, 01:39 AM
Hi tlingit....A couple more pics of the bike with the forks assembled....also have made the levers to opperate the throttle and magneto....BVX

BigValveX
12-16-2012, 10:01 PM
Hi ....Heres the bike with forks assembled with wheels and tyres....BVX

billyfly
01-13-2013, 04:17 PM
http://i639.photobucket.com/albums/uu116/billykerchner/photo1_zps51843b5a.jpg
http://i639.photobucket.com/albums/uu116/billykerchner/603050_436931066372700_519911353_n_zps8a9a1bb0.jpg

BigValveX
02-22-2013, 10:42 PM
Hi... Heres another view of my leaf spring forks on my look alike 1919 Excelsior...BVX