[Fantic 200 FM350 Minarelli 156 Rear wheel offset?]

Can anyone help with rim offset for the FM350 Minarelli 156 and the FM250 125 Professional please?

 

[Fitting tubeless rims to a classic trials bike]

Thanks for replies. 
I tried all sorts to seal spoke Chanel and then admitted defeat and troweled in windscreen sealer, then left it 2 days to set. 
sorted 😞

[Fitting tubeless rims to a classic trials bike]

Just a follow up, the Morad wasn't a straight fit to the Ossa rim. The wheel builder had to change the spoke angle by modifying the nipple holes/seats.

 I am having trouble sealing it as well. What is normal pressure loss I wonder?

I think next move will be to remove the band and seal up the spokes as per Woody's advice.

 

[Air cooled oil/fuel ratio]

Thank you.

[Air cooled oil/fuel ratio]

Thanks, I hadn’t considered the ring sealing. I’ll see what’s available oil wise around here. 

[Air cooled oil/fuel ratio]

Thanks for your reply. So if I am running 80:1 with present jetting I would need smaller main jet?

[Air cooled oil/fuel ratio]

What would be advise re oil fuel ratio with synthetic oil for my Ossa 250 MAR please?

Alistair

[Ossa TR-80 measure up for new shock absorbers]

Thanks, I think Forex is right, it’s too big an ask. 
 I’ll wait till the bike gets here and measure up everything Maxton ask for. 
They said they can work upto an angle of 45 degrees. 

I was hoping there was someone on the forum that had fitted a set to same bike. Steve has used a different make of rear shocks. I think. 
Alistair

[Ossa TR-80 measure up for new shock absorbers]

Yes you are probably right. 
Once I’ve measured my own bike I’ll post the measurements in case someone else needs them. 
 Thanks for the advice 

Alistair

[Ossa TR-80 measure up for new shock absorbers]

Looking for help, I have a Ossa tr-80 coming from Spain, it is several weeks away and I would like to get a pair of Maxton rear shock absorbers under way before it get here.

The units are built to order, the information they need is;

front and rear axle weight, 

swing arm pivot to rear axle

swing arm pivot to bottom shock mount

swing arm pivot to top shock mount

shock absorber length

top shock eye diameter and width

bottom shock eye diameter and width.

Any help would be much appreciated, thank you.

Alistair

 

[Fitting tubeless rims to a classic trials bike]

Thanks Woody, Greg, that’s great information and advise. 
 I have ordered a tubeless Morad rim and will be able to put all that great advice into practice, thank you for sharing your experience. 
Alistair

[Fitting tubeless rims to a classic trials bike]

?  well what do you know? 

 

[Fitting tubeless rims to a classic trials bike]

I heard they are no longer made.

[Fitting tubeless rims to a classic trials bike]

Thanks Greg, yes I would like to use the non flanged rim. Did you rebuild the wheel yourself?

[Fitting tubeless rims to a classic trials bike]

I guess there are not a lot of tyre choices that aren’t tubeless. 
 

[Fitting tubeless rims to a classic trials bike]

Thanks Woody,

did you have someone supply and build the wheel or do it yourself?

is it a worthwhile modification to do from your experience?

Spoiler

Spoiler

 

Spoiler

 

 

[Fitting tubeless rims to a classic trials bike]

I am looking for advise on the best way to go about fitting tubeless rims to a Ossa 250 Mar and a TR-80 Gripper.

Anyone out there that has done this, which rim did you use? The Mar has parallel hub and the Gripper doesn't, both 36 spoke.

I read a post were the poster had trouble fitting a new MORAD and had to fit a used one.

Any help appreciated.

Alistair

 

[Ossa TR-80 Gripper Magneto cover strengthening]

That’s great! Thank you ?

alistair

[Ossa TR-80 Gripper Magneto cover strengthening]

Sorry Stephen,

still no pic ?

[Ossa TR-80 Gripper Magneto cover strengthening]

Thanks Stephen,

 I could not open image though.

Alistair

[Ossa TR-80 Gripper Magneto cover strengthening]

No, what do these look like?

[Linkage Play]

On 5/21/2020 at 11:26 PM, baldilocks said:

There is a rose joint for the lower shock mount but its in the linkage where the reiger shock connects . There are two spacers which press into the rose joint, the shock lower fork straddles it. That's how it is on both of my RRs. You can see it on the parts diagram.

With zero load on rear suspension my rose joint outer has play left to right, the rose joint is no longer a tight fit in the alloy linkage. No up and down play.

[Ossa TR-80 Gripper Magneto cover strengthening]

Thank you.

[Ossa TR-80 Gripper Magneto cover strengthening]

Hi,

has anyone had any experience beefing up the magneto cover around the clutch actuation shaft or is there another stronger magneto cover that can be used?

Any help or advice much appreciated, thank you

Alistair