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New Tyres on my Puma 40

PostPosted: 06 Dec 2017, 20:32
by elryko1992
I buy new tyres from Heidenau with tube, tubless is more complicated for me, back 3.50 - 8 and for the front wheels 3.00 - 4. Its very nice :D i wait to put them on my chair soon. I will make other photos to see how is look. :dance

Re: New Tyres on my Puma 40

PostPosted: 06 Dec 2017, 20:46
by Burgerman
3.00 x 8 load on stock powerchair tyres is only 113kg max for 4 ply tyres I think.
3.50 x 8 is probably higher load. What is the marking on the side?
Also taller by .5 inch top/bottom and needs a .5 inch to 1 inch wider rim ideally.

The 120/70 - 8 tyres are only a fraction bigger diameter than stock. (0.15 inch top/bottom)
2 inches wider. Requires a 3.5 wide rim, and have 160kg max load @84mph. And of course tubeless.

Re: New Tyres on my Puma 40

PostPosted: 06 Dec 2017, 21:07
by elryko1992
Here is a pdf specs info for my tyre on page 4: http://www.heidenautires.com/tire_spec_sheet.pdf

I can't put bigger diameter because my door is small.

Re: New Tyres on my Puma 40

PostPosted: 06 Dec 2017, 21:24
by Burgerman
For your size, these have a very high 160kg load rating so are strong tyres. And they need ideally a 2.50 rim, limits are 2.15-3.00

Re: New Tyres on my Puma 40

PostPosted: 06 Dec 2017, 21:48
by elryko1992
ok thanks for information, but is affect my speed or something? power torque?

Re: New Tyres on my Puma 40

PostPosted: 06 Dec 2017, 22:16
by Burgerman
More speed, less torque, but only a little, and it will not display more on joystick!

Are your rims wide enough? If not it will still work but tyres pinched a little.

Re: New Tyres on my Puma 40

PostPosted: 06 Dec 2017, 22:23
by elryko1992
I understand, the rims is the stock from factory. I will see when i put the tyres how i feel it on joystick and torque. In Romania many doors is on the limit and with this tyres is ok, and i can't put the 2.5 inch rim. I change this tyre because i have solid tyres when i buy the wheelchair from UK London.

Re: New Tyres on my Puma 40

PostPosted: 18 Dec 2017, 14:55
by terry2
elryko1992 wrote:I buy new tyres from Heidenau with tube, tubless is more complicated for me, back 3.50 - 8 and for the front wheels 3.00 - 4. Its very nice :D i wait to put them on my chair soon. I will make other photos to see how is look. :dance



Hi.
Did the 3.50 - 8 tyres fit the standard Puma 40 rim?
I need some rear tyres soon.

Re: New Tyres on my Puma 40

PostPosted: 18 Dec 2017, 15:14
by greybeard
terry2 wrote:Hi.
Did the 3.50 - 8 tyres fit the standard Puma 40 rim?
I need some rear tyres soon.


Yes they will. But you will need a spacer on each axle to prevent the inner side wall from chafing on the motors. Large 3mm washers from eBay will do.

Re: New Tyres on my Puma 40

PostPosted: 18 Dec 2017, 15:56
by elryko1992
terry2 wrote:
elryko1992 wrote:I buy new tyres from Heidenau with tube, tubless is more complicated for me, back 3.50 - 8 and for the front wheels 3.00 - 4. Its very nice :D i wait to put them on my chair soon. I will make other photos to see how is look. :dance



Hi.
Did the 3.50 - 8 tyres fit the standard Puma 40 rim?
I need some rear tyres soon.


Hi Terry, i put two plain washer 2mm like a spacer because 3mm is not enough for me, and is very good 4mm :thumbup: i make some photos this days and i will upload here to see.

Re: New Tyres on my Puma 40

PostPosted: 19 Dec 2017, 09:18
by terry2
elryko1992 wrote:
terry2 wrote:
elryko1992 wrote:I buy new tyres from Heidenau with tube, tubless is more complicated for me, back 3.50 - 8 and for the front wheels 3.00 - 4. Its very nice :D i wait to put them on my chair soon. I will make other photos to see how is look. :dance



Hi.
Did the 3.50 - 8 tyres fit the standard Puma 40 rim?
I need some rear tyres soon.


Hi Terry, i put two plain washer 2mm like a spacer because 3mm is not enough for me, and is very good 4mm :thumbup: i make some photos this days and i will upload here to see.



That would be great...thank you.

Re: New Tyres on my Puma 40

PostPosted: 19 Dec 2017, 19:00
by expresso
elryko1992 wrote:I buy new tyres from Heidenau with tube, tubless is more complicated for me, back 3.50 - 8 and for the front wheels 3.00 - 4. Its very nice :D i wait to put them on my chair soon. I will make other photos to see how is look. :dance



i can tell you - those are nice strong tires - i Have the same ones on my chair - i am using a tube also - all good so far - they are a bit taller overall - if i recall they were about 2 inches overall more than the stock tires - you will feel it once you sit in your chair - ground clearance will go up - do this - measure the ground clearance you have now in rear battery box - then check it with the new tires on - mines ended up about 2 inches higher -

you will like those tires - very strong - nice ride - take pictures before and after -

do you have a link to those front tires you got 300-4 ? i am interested in them also

you will gain a bit of speed - i felt it - or just my imgaination - or the change in height - either way - its a plus :thumbup:

Re: New Tyres on my Puma 40

PostPosted: 19 Dec 2017, 19:24
by elryko1992
expresso wrote:
elryko1992 wrote:I buy new tyres from Heidenau with tube, tubless is more complicated for me, back 3.50 - 8 and for the front wheels 3.00 - 4. Its very nice :D i wait to put them on my chair soon. I will make other photos to see how is look. :dance



i can tell you - those are nice strong tires - i Have the same ones on my chair - i am using a tube also - all good so far - they are a bit taller overall - if i recall they were about 2 inches overall more than the stock tires - you will feel it once you sit in your chair - ground clearance will go up - do this - measure the ground clearance you have now in rear battery box - then check it with the new tires on - mines ended up about 2 inches higher -

you will like those tires - very strong - nice ride - take pictures before and after -

do you have a link to those front tires you got 300-4 ? i am interested in them also

you will gain a bit of speed - i felt it - or just my imgaination - or the change in height - either way - its a plus :thumbup:


Yes Expresso it's high with 2cm but is good. look a link with tire and tube ebay:

tire: https://www.ebay.co.uk/itm/Heidenau-MSC ... SwNnRYhLX9

tube: https://www.ebay.co.uk/itm/Heidenau-Inn ... SwCU1YxXEx

Re: New Tyres on my Puma 40

PostPosted: 19 Dec 2017, 19:28
by expresso
thanks - it seems they are in the UK mostly - dont find them here in the States - USA - its fine - i will get the Kenda version -

thanks

Re: New Tyres on my Puma 40

PostPosted: 19 Dec 2017, 19:39
by elryko1992
Yes because its made in Germany, and here in Romania i found to a shop online and in 5 days i recieve the tire, its hard to found this dimension from Heidenau, its very good tire. I like because don't smells like other tire. czy

Re: New Tyres on my Puma 40

PostPosted: 19 Dec 2017, 20:16
by expresso
this would be the kenda same size

Re: New Tyres on my Puma 40

PostPosted: 20 Dec 2017, 01:22
by snaker
elryko1992 wrote:Yes because its made in Germany, and here in Romania i found to a shop online and in 5 days i recieve the tire, its hard to found this dimension from Heidenau, its very good tire. I like because don't smells like other tire. czy

Is their price in Romania the same as in UK ebay?

Re: New Tyres on my Puma 40

PostPosted: 20 Dec 2017, 09:38
by elryko1992
snaker wrote:
elryko1992 wrote:Yes because its made in Germany, and here in Romania i found to a shop online and in 5 days i recieve the tire, its hard to found this dimension from Heidenau, its very good tire. I like because don't smells like other tire. czy

Is their price in Romania the same as in UK ebay?
yes is the same price

Re: New Tyres on my Puma 40

PostPosted: 28 Dec 2017, 20:28
by elryko1992
New image, sorry for late.

Re: New Tyres on my Puma 40

PostPosted: 28 Dec 2017, 20:30
by Burgerman
Very good.

Re: New Tyres on my Puma 40

PostPosted: 28 Dec 2017, 20:31
by elryko1992
Thanks John :thumbup:

Re: New Tyres on my Puma 40

PostPosted: 28 Dec 2017, 20:33
by expresso
very nice - they fit great - :thumbup: how much did it raise the chair in the rear ? they will feel nice riding - what PSI are you using in the rear and fronts ?

did you add any Slime inside or just Air ?

Re: New Tyres on my Puma 40

PostPosted: 28 Dec 2017, 21:08
by elryko1992
I think it rise 2cm. PSI rear: 2.5 and front 1.5 just air.

Re: New Tyres on my Puma 40

PostPosted: 28 Dec 2017, 22:25
by expresso
elryko1992 wrote:I think it rise 2cm. PSI rear: 2.5 and front 1.5 just air.



PSI 2.5 ?

did you ride it - how does it feel now - much better

Re: New Tyres on my Puma 40

PostPosted: 28 Dec 2017, 22:34
by hank
They look much better :clap :dance

Re: New Tyres on my Puma 40

PostPosted: 28 Dec 2017, 23:06
by elryko1992
Yes much better, because i have the solid tyres and that i change the all tyres. I am happy now :thumbup:

Re: New Tyres on my Puma 40

PostPosted: 29 Dec 2017, 02:33
by snaker
expresso wrote:PSI 2.5 ?
did you ride it - how does it feel now - much better

I guess he meant 2.5kg/cm2 = 35psi

Re: New Tyres on my Puma 40

PostPosted: 29 Dec 2017, 12:04
by elryko1992
35psi its too much for me, 2,5 bar its very good.

Re: New Tyres on my Puma 40

PostPosted: 29 Dec 2017, 19:49
by Burgerman
2.5 Bar IS 36psi...

And yes too high.

Re: New Tyres on my Puma 40

PostPosted: 29 Dec 2017, 20:39
by expresso
i fill mines up to 38 PSI - feels fine - different for everyone - chair - user size etc,