RUMCars Forum

General Category => Unusual Microcar Discussion => Topic started by: richard on April 12, 2015, 12:43:30 AM

Title: Bond inner tubes 4.00 x 8
Post by: richard on April 12, 2015, 12:43:30 AM

Quick question - must I have 90 degree valves on tubes , on the 8"Bond wheels or can I get away with straight thanks as always  :)

Title: Re: Bond inner tubes 4.00 x 8
Post by: Rusty Chrome (Malcolm Parker) on April 12, 2015, 11:14:26 AM

You can get away with straight, although I think some have shorter valve stems which might them tricky to pump up. I can recommend these if you want the bent type.

http://www.ebay.co.uk/itm/CAR-IMPLEMENT-INNER-TUBE-350-400-8-BENT-METAL-VALVE-089-/110797866311 (http://www.ebay.co.uk/itm/CAR-IMPLEMENT-INNER-TUBE-350-400-8-BENT-METAL-VALVE-089-/110797866311)

Title: Re: Bond inner tubes 4.00 x 8
Post by: Bob Purton on April 12, 2015, 12:28:03 PM

Just to muddy the waters there is more than one angle available for bent valves. 90 and 45 degrees.

Title: Re: Bond inner tubes 4.00 x 8
Post by: Rusty Chrome (Malcolm Parker) on April 12, 2015, 01:23:52 PM

I didn't know that. I'd guess 45 degree ones could be the ideal compromise between ease of fitting and getting a pump to fit, but I've never seen them. As far as I know 90 degree ones were original fitment on Bonds.

Title: Re: Bond inner tubes 4.00 x 8
Post by: plas man on April 12, 2015, 03:14:46 PM

go for the cranked valve stem - if you use a modern tube with rubber valve stem you will have to ream/drill out the hole in the rim .

have you thought about cutting the old tubes up and using them as gaiters - between the tube and wheel rim on split rim's , originally  fitted by Bond factory to new cars , the gaiter is another item that you cant get in this modern day .

Title: Re: Bond inner tubes 4.00 x 8
Post by: richard on April 12, 2015, 09:52:59 PM

Great idea re cutting up old tubes as it saves pinching the tube when bolting the wheel halves together  , I have done it before - problem no old tubes this car has NOTHING  :)

Title: Re: Bond inner tubes 4.00 x 8
Post by: richard on April 12, 2015, 10:07:23 PM

Have you used those Malcolm , it doesn't say how "bent " - thanks

Title: Re: Bond inner tubes 4.00 x 8
Post by: Rusty Chrome (Malcolm Parker) on April 12, 2015, 11:07:09 PM

Yep, it does say in the ad that brand names will vary, but the ones I got were really good quality and had 90 degree stems.

Title: Re: Bond inner tubes 4.00 x 8
Post by: Bob Purton on April 13, 2015, 08:25:56 AM

I buy mine from Beedspeed scooters, Michelin so you cant go wrong although a pound or two dearer.
https://www.beedspeed.com/inner-tube-350400-airstop-degree-valve-p-6289.html?osCsid=fmm2dhibsjl8bms2f2js8nvi06

The 45 degree ones are hard to find now in 8" by a known brand, it depends if you want to risk a wheelbarrow tube like this. If you intend to actually get the car on the road[not being funny!] I would stick to a road going tube like the Michelin.

http://www.innertubeshop.com/products/3-50-8-wheelbarrow-inner-tube-bent-valve

Title: Re: Bond inner tubes 4.00 x 8
Post by: richard on April 13, 2015, 12:53:14 PM

Thanks for the help everyone decisions made  :)