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Message started by paulmarshall on 01/27/15 at 21:49:34

Title: Replacement front axle/spindle
Post by paulmarshall on 01/27/15 at 21:49:34

I have to make a longer front axle/spindle to accommodate the wider triples. Can someone please tell me what our stock ones are made of and can I use mild steel as a replacement?

Title: Re: Replacement front axle/spindle
Post by justin_o_guy2 on 01/27/15 at 21:58:11

I have no clue.. The answer, if it was my question, would be discovered,,
Knowing what a spindle from a bike with the fork width you have would be
How I'd start. Whatever metal works for big bikes with wide forks should work for you.

Title: Re: Replacement front axle/spindle
Post by paulmarshall on 01/27/15 at 22:00:28

I have Google and been given conflicting replies as you do with Google.

Title: Re: Replacement front axle/spindle
Post by paulmarshall on 01/27/15 at 22:01:25

Its only going to be 25mm wider than stock.

Title: Re: Replacement front axle/spindle
Post by verslagen1 on 01/27/15 at 22:34:38

I'd look to the axle from the tripples you're using.

Title: Re: Replacement front axle/spindle
Post by justin_o_guy2 on 01/27/15 at 23:11:14

Yep, and if it's heavier, there is a clue.
25 mm,, close to an inch?

The deal is, how you gonna handle the difference between the hub and the axle length? Spacers, tight axle, spacers need to fit the axle, not just fill the gap between hub and tubes. That's my best guess, but I would not proceed on just that. I'd talk to someone who builds..

Title: Re: Replacement front axle/spindle
Post by paulmarshall on 01/27/15 at 23:15:42

Sorry I meant 25mm longer. Two 12.5mm spacers on each side to take up the slack.

Title: Re: Replacement front axle/spindle
Post by paulmarshall on 01/27/15 at 23:19:37

I am using stock shocks and front hub.

Title: Re: Replacement front axle/spindle
Post by justin_o_guy2 on 01/27/15 at 23:19:55

Yeah, 25 mm, about an inch, half per side,, a poorly supported axle can get really bent in a half inch. I stand by my post.. spacers drilled to Fit the axle.
And, get input from more people.

Title: Re: Replacement front axle/spindle
Post by paulmarshall on 01/27/15 at 23:21:21

2E3137302D2A1B2B1B23313D76440 wrote:

Yeah, 25 mm, about an inch, half per side,, a poorly supported axle can get really bent in a half inch. I stand by my post.. spacers drilled to Fit the axle.
And, get input from more people.

Will do ;)

Title: Re: Replacement front axle/spindle
Post by Dave on 01/28/15 at 03:58:25

Yep, you need to find the axle that was used with those triple trees, then hope the diameter is the same as the stock wheel....and then the issue becomes how the axle connected to the fork legs. Our forks have one end threaded, and one end is a shoulder that gets clamped into the fork leg....it is going to be pretty amazing if the axle that goes with those fork yokes actually works.

When you start mixing parts up....it can get really complicated.

Maybe you should consider the new RYCA top fork yoke? Another option is to find a complete front end that works....and only the steering stem and bearing are a concern....that way all the other fork/wheel/fender/brake parts are made to be used together.

Title: Re: Replacement front axle/spindle
Post by paulmarshall on 01/28/15 at 10:34:10

566D6077666A71776C646976050 wrote:

Thanks Dave but why cant I lathe a axle 25mm longer and make bigger spacers. Other people are doing it successfully according to Google.

Title: Re: Replacement front axle/spindle
Post by verslagen1 on 01/28/15 at 10:48:26

59485C4544485B5A41484545290 wrote:

Thanks Dave but why cant I lathe a axle 25mm longer and make bigger spacers. Other people are doing it successfully according to Google.

Title: Re: Replacement front axle/spindle
Post by paulmarshall on 01/28/15 at 11:05:35

7D6E7978676A6C6E653A0B0 wrote:

[quote author=59485C4544485B5A41484545290 link=1422424174/0#11 date=1422470050]Thanks Dave but why cant I lathe a axle 25mm longer and make bigger spacers. Other people are doing it successfully according to Google.

I don't think you can't, but agree with dave that there will be complications.
as you noted... 'what material', dimensions, hardness, etc.

remember, your nose is at stake, not mine.

What triple trees are you using, maybe someone has one that they can measure and you might be able to use the axle?

Or what length axle do you need?
I have GR/GS front ends that I can measure.[/quote]
I am doing careful resurch and asking lots of questions regarding which grade steel to use. In layman's terms too mild or too hard steels can cause problems, a happy medium is required. A material that can flex.
The length I need is stock plus 25mm approximately. I will measure it later with forks mounted into donor triples with a more accurate measurement.