Cycling UK Forum

Brucey wrote: .............. a much simpler chainguard (easier to fit on a derailleur system) might greatly improve chain life.

I do wonder if a wrap-round chainguard just for the chainset would be fine, as the muck and grit get picked up from the front.

It could be designed with an eye on aerodynamics, perhaps made from CF in the fashionable black.

Hi,
Most of the motorcycles fitted with chaingaurds were of the low power variety or the fashionable MZ stuff
Then the owners still smilling at their low maintainance bike would simple forget / cant be bothered and cant see any wear
When they did look if they had'nt passed the bike on to another flat cap wearing club member / poor nieve punter citing ( one careful pensioner owner ), they found the chain S*!$$&d, and the rear sprocket resembling a circular saw blade frome some 1930's horror silent movie
I think the jury's still out on chain gaurds, would they suit the carbon boys Or simply satisfy the retired ex engineer as he gases over a pint or three at his local, reciting some mountain he once climbed on his fixed wheel................. ..........landlord rings bell..............

Even the motorcycles that did not have a chaincase had more of a chaincase than the one which I am trying to fit to my bicycle.

The fully enclosed motorcycle chaincases worked very well. I killed off a new motorcycle chain in just 2,000 miles on a trip to Vienna and back as it was exposed and poorly lubricated.

Hi,
In the right conditions my chain would last 500 if I was lucky ( too small a chain for bike I think ) Motorcycle.
Chain GAURDS on MC's were a mandatory safety addition unless it was a Enduro / Motorcrosser.registered for the road, so were Metal fuel tanks on MC's.
More just for asthetics than anything else, mudgaurds on cycles, all mine have them.

Mick F wrote:IrishBill76 photo is of Winter Hill up in Lancashire.

From the track just above the lead mine,nice spot for a picnic.

reohn2 wrote:

Mick F wrote:IrishBill76 photo is of Winter Hill up in Lancashire.

From the track just above the lead mine,nice spot for a picnic.

Yes indeedy

reohn2 wrote:..............
I also looked at trying a guard on the right side of the rear m/guard possibly attached to the right hand chainstay(which is the other source of spray/road grit on the chain) but can't come to a satisfactory conclusion about the fitting

I looked at that.....I came to the conclusion that I could make it work for the top run of chain, but not for the bottom run.....I suspect the bottom run gets blathered as its well below the guard, and the stream of muck will spread out....but its not the sort of place to fit a rigid guard, not on a bike that goes off-road, anyway.

maybe rigid above the chainstay, flexible below?

cheers

Brucey wrote:maybe rigid above the chainstay, flexible below?

cheers

Well, if you're looking for a challenge.....its got to be flexible enough to move out of the way if clouted, and spring back into position, but its got to be rigid enough to hold its position without anything very obvious to secure it to.....oh yes, and neat enough not to restrict tyre clearance at the chainstays, and curved to follow the wheel.....

Sounds like a job for those vacuum moulding machines they have for polystyrene sheet in every CDT (D&T) workshop in Secondary Schools across our lands, that they just love any excuse to use instead of learning some skills.

531colin wrote:

Brucey wrote:maybe rigid above the chainstay, flexible below?

cheers

Well, if you're looking for a challenge.....its got to be flexible enough to move out of the way if clouted, and spring back into position, but its got to be rigid enough to hold its position without anything very obvious to secure it to.....oh yes, and neat enough not to restrict tyre clearance at the chainstays, and curved to follow the wheel.....

Builders DPC could do it.Flexible enough but won't cause problems if it comes into contact with the tyre or chain.
I last thought about the problem and came to the conclusion that the bottom chain run isn't directly in the firing line if the top run is protected by a deflector,as the spread of spray is arrested for the top run and so would just run/drip off the deflector if it's terminated 75mm below the chainstay.It isn't a perfect solution but a minimising of the effects of spray.

I might have a go...corrosion eats my chains alive through the winter....not so bad now.

Latest update, I tried the new chain with the old cassette and 3 rings skipped pretty badly so I've binned it. I'll probably bin the old chain as well.

tykeboy2003 wrote:Latest update, I tried the new chain with the old cassette and 3 rings skipped pretty badly so I've binned it. I'll probably bin the old chain as well.

You have to bin the chain......this is how it works......
The chain wears, and the worn chain wears the cassette.

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