Basket Cases

Need help finding information or parts for that old machine in your shed? Someone in here will know!

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David Lahey
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Re: Basket Cases

Post by David Lahey »

Guy53 wrote:Are yu sure about the MT43 as they don't have '' square '' center knob
Guy

I wondered about that on the Pirelli too, Guy.
Another one of those 'FIM legal" tyres is the MITAS rear. I bought one of them to try out many years ago. First I tried it on a 200 Beta then a Cota 348 and didn't like it on either and gave it to a friend. It was a quite low profile tyre and was rubbish where you needed the tyre to conform to objects like fallen branches or creek stones.
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David Lahey
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New boot fix

Post by David Lahey »

I bought some new boots and on most bikes they were great but on one bike the top edge of the sole would get caught under the edge of the stand mount at critical times when riding.
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I thought about modifying the boot sole but decided to try making a boot heel deflector instead. It's made of 3 mm HDPE and worked well on a brief test ride this morning. Much more testing required but it is ridiculously hot and humid here this morning.
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tat ty
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Re: Basket Cases

Post by tat ty »

I recall many years ago attempting to foot in a precarious traverse across a rock ledge. Boot somehow seriously jambed between peg and either gear lever or brake pedal (forget which).

Not a good outcome. Straight over a 3 metre rock ledge ... nose planted into a nasty protruding rock seam below.

So much blood. I never had a great looking face to start with.

Something to be said for keeping your feet up.

Alastair.
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Greg Harding
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More Trials tyre variations!

Post by Greg Harding »

Hi Everyone,

Betaman wrote:If you look at the maxxis website Greg you will find they call their tyre a hybrid.
Altho I dunno where a tubeless radial 18" with soft trial compound becomes a hybrid.
All I can pickup is it's slightly wider knob spacing which potentially makes it the ultimate muddy trials tyre

Sorry for late response Betaman, there is one thing that I have thinking all along and just realised that I did not mention it here. That is Copyright, it is a complex thing and I don't fully understand it but from memory if you are making something that is covered by copyright then it has to be changed by at least 10%. So that might explain all of the variations?
David Lahey wrote:
Guy53 wrote:Are yu sure about the MT43 as they don't have '' square '' center knob
Guy

I wondered about that on the Pirelli too, Guy.
Another one of those 'FIM legal" tyres is the MITAS rear. I bought one of them to try out many years ago. First I tried it on a 200 Beta then a Cota 348 and didn't like it on either and gave it to a friend. It was a quite low profile tyre and was rubbish where you needed the tyre to conform to objects like fallen branches or creek stones.

Well pointed out.
Here are some more variations of old Trials tyres:
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,
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One of my school friends had an Avon Mudplugger on the back of his :kawasaki KE175 circa 1978.

These next 3 photos are courtesy of ebay USA, you may be familiar with these Guy? I have never seen these before.
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Would any of these comply with these above mentioned antiquated rules?
Knobs that are not square, extra rows of knobs outside "Trials Universal pattern", staggered rows of knobs like an Enduro tyre/ Knobby.
brownie wrote:I thought the standard for a trials tyres was adopted internationally 50 or more years ago.
The reason for the ruling was, to satisfy landholders that generously allowed trials to be held on their properties, that ground disturbance would be kept to a minimum.
That’s why the trials universal tyre measurements became a standard. The line had to be drawn somewhere.
That’s why Maxxis sell their tyre as a Hybrid trials/enduro tyre not as a Trials tyre
Cheers Ross

Thank you Ross, you are always good for a history lesson but I disagree with your last comment. MAXXIS clearly state TRIAL on both front and rear versions! It is more likely the "hybrid" terminology is used in their advertising to avoid Copyright infringement.

Just for the record, I personally think Michelin tyres work better than MAXXIS. The reason I am pushing the point is MAXXIS are excellent value for dollars and are available locally.

Also in my opinion an excellent entry level tyre as new people to our sport should not be pushed away with petty hard to understand rules and exorbitant prices.
2017 Newsflash: RUST IS THE NEW BLING !
Team Hardwood, the only licenced trials riders in Coffs Harbour!
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Greg Harding
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Re: Basket Cases

Post by brownie »

Hi Greg
This is the same tyre we’re talking about isn’t it

“TRIALMAXX M7319/M7320
This trail-riding motorcycle tyre is designed to provide grip, comfort and reliability to trail riders everywhere.

A hybrid between trials and enduro
Perfect for green-laning
Designed to provide grip on a wide range of surfaces
OE fitment on the KTM Freeride
Performs even on wet, slippery rock
You can buy this tyre from your local dealer. Head into your usual bike shop and ask for the Maxxis Trialmaxx tyre.
Trialmaxx M7319/M7320”

That’s Maxxis comments it’s how they market the tyre They know it doesn’t conform to Trials regulations or it would be a marketing point
If anyone is unsure of their tyre just read the measurements in the FIM link David put up and get your tape out to measure your tyre or the one your going to buy.
Ross
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Re: Basket Cases

Post by brownie »

FIM tyre regs
FIM tyre regs
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David Lahey
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aftermarket TY air cleaners

Post by David Lahey »

I finally fitted one of the Eirian Davies airboxes yesterday.
It took a while for a silicone hose to arrive. Because the OKO carby intake bell is a bit under 2" diameter and the airbox stub is 1.75" diameter I decided to use a 2" to 1.5" reducing hose to connect them.
I've only given it a try out on my smallish practice sections and on them, the way the motor runs is the same as when it had the pod filter. The sound is similar to the pod but different. I like to be able to hear the induction noise and this airbox provides that.
I was using a pod filter because the Majesty frame doesn't have enough space for a TY250 airbox and hose, mainly because the standard TY250 airbox has the hose coming out the bottom. This air box has the outlet pointing forwards and the airbox spigot and the carby inlet bell are only a few mm apart.
I plan to give it a good test soon. Hopefully at my first trial of the year which is a few weeks away.
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Guy53
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Re: Basket Cases

Post by Guy53 »

Super nice
Guy
David Lahey
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tyres comparison

Post by David Lahey »

I've been trying to work out why the MAXXIS doesn't work as well on small logs and sharp edges as the Michelin does. I have plenty of theories and one of them was about how well they wrap small logs.
To try and get a look at what the two tyres do, I set up a Koppers log and deformed both tyres against the log until they felt solid.
To me it looks like they both wrap nicely and pretty much the same amount.
There is a difference in that the Michelin outer knobs are hidden by the fold in the tyre wall but the edge knobs are still visible on the MAXXIS.
While I was doing these photos the thought occurred to me that maybe a reason for why the Michelin works better riding over logs like this is that with the Michelin there is much more rubber in contact with the log due to the smaller gaps between the knobs.
Michelin X11 on TY250A rim

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MAXXIS on TY175B rim

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David Lahey
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TY175 kickstart lever vs FEKED footrest

Post by David Lahey »

About 20 years ago I fitted a FEKED TY175 footpeg kit to my TY175. Back then the product was called SM (Sammy Miller) Products TY175 footpeg kit.
I liked the way the new pegs stuck out further than the originals but they fouled the kickstart lever.
I devised a little gadget to hold the peg up for starting while retaining the return spring and posted up photos and showed people many times since then.
It's been a long time and the postings must not have been seen by people who have more recently started enjoying the fruits of TY175s because another friend asked me today why their new kickstart assembly was fouling on their new FEKED footpeg kit.
So I took a fresh photo and made a new youtube clip to show how it was done and here they are.

YouTube link https://youtu.be/aFEimi9eDpM

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