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View Full Version : VLX 600 18" rear and 21" front wheel swap and disc brake conversion



BmillerRoyaleBobber
04-08-2015, 12:46 AM
As the title says. I did the 18 and 21 HD wheel swap and disc conversion over the winter. Not a easy task but here she is. I'm not on this forum a lot so follow me on my instagram @b_built_bobbers. Im not one of those ass holes that wont share info. I would be glad to share any info I have on doing the swap.

here is the parts list. Any part numbers that I have listed you can put in ebay and they will pop up.

[V] Turn front axle down to 3/4 on lathe
[V] 12" shank 3/4 diameter rear axle
[V] 3/4 ID pipe to make axle spacers
[V] 23" brake line for rear caliper
[V] Rear sprocket bolts
[V] 3/8 thick rear sprocket spacer
[V] 3/4 thick front rotor spacer
[V] 90/90-21 tube
[V] 90/90-21" front tire
[V] 180/55-18 rear tire
[V] Rear caliper and bracket for dyna 3/4 axle
[V] Front rim ultima #36-390
[V] Rear rim ultima #36-736
[V] Cbr600 rear master cylinder
[V] Rear disc 84-99 harley bolt pattern
[V] Front disc 84-99 harley bolt pattern
[V] 44t 84-99 harley bolt pattern socket 525 pitch (custom made from sprocketspecialists.com)
[V] You use stock caliper for front brake

Plan to spend at least $1,500 in parts. Have fun guys. And yes it is worth every fucking penny.

58652586535865458655

farmall
04-08-2015, 6:46 PM
I like your listing format.

Nice bike too!

BmillerRoyaleBobber
04-08-2015, 8:01 PM
Farmall Thanks

BeardedWonder
10-01-2016, 4:20 PM
Is it safe to turn down my axel to 3/4?

Angelking
10-02-2016, 4:45 AM
Is it safe to turn down my axel to 3/4?

I would never turn an axle or fork stem down. When I finished my bike build, it had a D&D springer with a 5/8 axle. I had the axle cleaned up on a lathe done by a professional. The axle had some very very minor scratches and cleaned up very nicely. Had new bearings I installed that still fit very snugly. About 6 months later was riding around Key West Florida. Was doing about 60 down US 1, got on Duval street, and traffic slowed to a crawl. Made a right turn off Duval by Mallory square and the entire bike dropped straight down onto the bottom of the frame and of course came to an instant stop almost throwing me over the bars. After the W.T.H. moment I looked down, the right rocker was embedded into my 21" spool wheel spokes. The axle had broken right where it goes through the right rocker, the left rocker was bent outwards and several spokes were bent.
Now I don't know what caused the broken axle, but I do know had that happened 10 minutes earlier while doing 60 instead of 5, the outcome would have been much different.
Does turning an axle or stem make it less safe....... don't know........ but after that experience I would never do it again. Wound up getting an entire new front end from Paughco.

Some pics attached.


AK

http://i1254.photobucket.com/albums/hh612/g159hrm/asdfad_zpsdqwuyszk.jpg (http://s1254.photobucket.com/user/g159hrm/media/asdfad_zpsdqwuyszk.jpg.html)

http://i1254.photobucket.com/albums/hh612/g159hrm/ssadffdf_zps6bpcyjz1.jpg (http://s1254.photobucket.com/user/g159hrm/media/ssadffdf_zps6bpcyjz1.jpg.html)

http://i1254.photobucket.com/albums/hh612/g159hrm/sdfasdfasf_zpsbfpu01wi.jpg (http://s1254.photobucket.com/user/g159hrm/media/sdfasdfasf_zpsbfpu01wi.jpg.html)

AK

Joel1999
01-09-2018, 4:33 AM
As the title says. I did the 18 and 21 HD wheel swap and disc conversion over the winter. Not a easy task but here she is. I'm not on this forum a lot so follow me on my instagram @b_built_bobbers. Im not one of those ass holes that wont share info. I would be glad to share any info I have on doing the swap.

here is the parts list. Any part numbers that I have listed you can put in ebay and they will pop up.

[V] Turn front axle down to 3/4 on lathe
[V] 12" shank 3/4 diameter rear axle
[V] 3/4 ID pipe to make axle spacers
[V] 23" brake line for rear caliper
[V] Rear sprocket bolts
[V] 3/8 thick rear sprocket spacer
[V] 3/4 thick front rotor spacer
[V] 90/90-21 tube
[V] 90/90-21" front tire
[V] 180/55-18 rear tire
[V] Rear caliper and bracket for dyna 3/4 axle
[V] Front rim ultima #36-390
[V] Rear rim ultima #36-736
[V] Cbr600 rear master cylinder
[V] Rear disc 84-99 harley bolt pattern
[V] Front disc 84-99 harley bolt pattern
[V] 44t 84-99 harley bolt pattern socket 525 pitch (custom made from sprocketspecialists.com)
[V] You use stock caliper for front brake

Plan to spend at least $1,500 in parts. Have fun guys. And yes it is worth every fucking penny.

58652586535865458655

Do you have the part number or more info on the rear sprocket?
Any info in this would be great.
Thanks!

TriNortchopz
01-09-2018, 7:48 AM
Is it safe to turn down my axel to 3/4?

Angelking's experience was not good. It is easy to get a new one built. Also, easy to get different size axles (metric or inch) from a salvage yard to fit - just get the size needed, cut to length, then get the ends threaded to fit your needs. On one chop build, I had bought a new Paughco springer and the supplied 5/8" axle was a bit of a loose fit in the rocker hole, so measured the new rocker axle hole, and found it to be oversize by .005"; that is 16mm (0.6299"), so got a 16mm axle, cut it to length and threaded the ends to 5/8" UNF - good to go.

CWayne
01-31-2018, 2:13 PM
Thanks for the post. I have been looking to do this exact setup on my shadow. A few questions...the Rear caliper and bracket for dyna 3/4 axle....is it any year for the bracket?

Joel1999
11-08-2018, 6:47 PM
Thanks for the info! I just installed my wheel with your help. This is a YouTube video on it......
https://youtu.be/MQ__FOdLpi8

Joel1999
11-08-2018, 6:49 PM
88661
88662

Sky
11-09-2018, 7:22 AM
Wheel swap looks great on both bikes!
Do they ride any better? Change ride height much?
Brake any better?

But $1500!!
I'm sure you could collect parts on much smaller buget
Reminds me of those $800 Donks with $3000 rims/tires in tha' hood. Just not as garish

As far as turning down axles, sure it can be done right.
Was it case hardened? Might need a 'nother heat treat after machining.
I'd rather upgrade my bearings...
Got a 25mm axle in Harley softail plates and Jap rims on my Triumph.

On to Angelking's experience
5/8" axel on a raked springer...
I often see rockers with incorrect geometry for a given
rake. Poor axle thinks it's in a rigid fork!

farmall
11-09-2018, 10:44 AM
A solid axle not made of silly putty is safe to machine and not different than turning the same part from round stock, but if you machine your own use something like 4140 (nicer to machine than 1018 too!). Ditto stems. They are mostly loaded in shear so if solid no worries unless they are off a shit metal springer. Turning down a solid axle from one of the big four Jap makers or HD wouldn't worry me a bit.

Budget springers tend to be made of mystery metal because cost is everything. People REALLY want the shiny, but best to buy quality or not at all. I'm not into dying for a toy. Inferior suspension is one thing, but crashing due to trash components on that inferior suspension is a bit much.

Joel1999
11-11-2018, 4:36 AM
Rides great, height is about the same. Just more rim.
As for the price, I spent $600 on the rear wheel. Parts and machining. Yes you can spend money on a nice store bought bike and look like everyone else. Or you can spend a little money and time in your garage and have a custom bike.