Birmingham Trades & Sales

How has the wheel failed then? Assume just the fronts?
V

4ndy, EMM and StuF would make good testers, as they've all knackered wheels in the last few months.

People cycle into the back wheels and buckle them, but they're usually old road wheels that are still dished or have old chrome rims.

The latest wheel I pringled was a non-dished 40h brand new. No spoked wheel can survive a hard sideways impact. Someone make a 27" tuff/mag wheel.. Pleeease!

I honestly don't know how I've thrown wheels downstairs and they haven't buckled

I'm riding on a campag back wheel, now I'm getting serious about polo that baby needs taking off ASAP!

I cycle into the back wheels and buckle them, but they're usually old road wheels that are still dished or have old chrome rims.
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ftfy

@ Stu - if your 40h wheel had (at some point) it was dished. Dished just means the rim is centred between the locknuts, so on geared hubs it's off-centre between the flanges. Also, a lot is down to the quality of the rim. Your 'vintage' steel rims are basically very weak, you could put 100 spokes in and they'd still bend

I honestly don't know how I've thrown wheels downstairs and they haven't buckled

Wheels are much stronger radially than laterally. It takes a lot to taco one from vertical impacts, but not much from sideways ones. Also, you've got about 12" of 'suspension' in your arms and legs for jumps, which doesn't work laterally.

Wheels are much stronger radially than laterally. It takes a lot to taco one from vertical impacts, but not much from sideways ones. Also, you've got about 12" of 'suspension' in your arms and legs for jumps, which doesn't work laterally.

Do you reckon wider hubs (flange position) would mean noticeable improvement in lateral strength ?

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ftfy

@ Stu - if your 40h wheel had (at some point) it was dished. Dished just means the rim is centred between the locknuts, so on geared hubs it's off-centre between the flanges. Also, a lot is down to the quality of the rim. Your 'vintage' steel rims are basically very weak, you could put 100 spokes in and they'd still bend

This all depends on the steel rim. Cheap aluminium rims are bendy just like cheap steel rims. There arent many excellent steel rims around for big bikes, but certainly stuff that would be as strong as a good quality aluminium road bike rim. And much much stronger than an aluminium rim of the same period. Plus they have the benefit of being able to be beaten back into shape after severe impact.

I also ride very large tyres which help I think

I have a few 27" steel rims and wheels knocking around if anyone wants to do a test to see which is tougher. I am actually intrigued, although I know overall it will probably be trivial due to the fact any wheel would get wrecked in a side impact.

So who wants to try out a pair of 40mm large flange wheels then..Need to be sensible..:_))

I'd be more than happy but as i said i need 135 spacing at the rear

I would be up for it Jim, my rear is on it's way out at the moment anyway.

This all depends on the steel rim. Cheap aluminium rims are bendy just like cheap steel rims. There arent many excellent steel rims around for big bikes, but certainly stuff that would be as strong as a good quality aluminium road bike rim. And much much stronger than an aluminium rim of the same period. Plus they have the benefit of being able to be beaten back into shape after severe impact.

I don't know of any good steel 700c rims. They are all either old/outdated or cheap/shit.

Need seatpost and then I'm done. Failing to measure seatpost. Someone just come round with seatposts please. Sigh.

whats the ruler saying?

When buying Wheels for Mountain Bikes I ask for Submarine Levels of Radial Strength.

On a serious note..DMR make single speed hubs, in various flavours.

http://www.dmrbikes.com/?Section=products&pageType=item&category=10&CategoryName=Hubs&itemid=HUBRSSD10

MG- I've got a couple of old stylee seatposts (separate clamp ones) in 25.8 and 26.4/6 (can't read it properly) if your completely stuck - not very long though

Havr you seen the white rimmed wheel going cheap?

V

I would be up for it Jim, my rear is on it's way out at the moment anyway.

I worked it out to 28.9 or something with a stupid maths equation. It's larger than standard that's fo sho.

Make sure its spot on...we did laugh Saturday.. 'this is where so and so did not shim his frame and it failed...'

Innit.

I don't know of any good steel 700c rims. They are all either old/outdated or cheap/shit.

assuming you dont actually need a 700c there is plenty of old stuff around and fine for a polo bike.

And has the added benefit of being bodge repaired and disposed off without losing £60+ worth of wheel.

The weight addition of the steel rim is not something that should bother a polo player and also not be more than a 48 spoke wheel anyway.

Just pick up old shit wheels for free from scrapyard etc, use and abuse, knock back into shape once or twice then dispose.

Better than spending £80 or so on a fancy modern 48 spoke only for it to be destroyed in once crash even if it is stronger.

But yeah, this is more of an option for those riding retro polo bikes or Mtb's.