[Closed] Using a crud guard on a full sus frame (seat up/down solution at last)

Bloody brilliant thinking, well done!

Cant you just leave the seatpost up?

you should know the rules by now,seapost up,helmets off. 😉

What a flaff.

Solution looking for a problem!

lol at blower

htf is it a faff - 2qrs

jon - whatever

Does the shim insert into the frame with the seatpost? Or does only the seatpost go into the frame?

Might not be enough need to justify full production and everyone having one. However, Rob has come up with an elegant and simple solution to something that he has issue with. I like it. Well done mate.

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james - Member

Does the shim insert into the frame with the seatpost? Or does only the seatpost go into the frame?
Posted 4 minutes ago # Report-Post

Seatpost goes into the frame through the shim, the shim stays put - fixes the mudguard height 🙂

Onzadog - Member

Might not be enough need to justify full production and everyone having one. However, Rob has come up with an elegant and simple solution to something that he has issue with. I like it. Well done mate.

jon et al

[img] [/img]

good effort, simple solution.
good design is intelligence made visible (or something)

yep ill give the lad credit there..

😀

Nice work Rob.

Often wondered how I would do that if I could be bothered to use a rear gaurd.

I use a [url= http://www.evanscycles.com/products/sks/x-blade-mtb-mudguard-ec005804 ]SKS X-blade[/url] which I attach to the frame. Play with the mounts and you get enough height over the rear wheel. If you are really tight for space, mount the piece that attaches to the bike upside down (it unbolts).

Sorted.

hmmm - £7 or £20?

How far does the shim go into the seat tube?

I'd imagine the shim stays on top of the lower QR, with the other one clamping the top of the shim to stop it rotating.

Nice

Your drawer is on the piss

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Explosion In a Spaghetti Factory - Member

How far does the shim go into the seat tube?
Posted 6 minutes ago # Report-Post

Shim is the same outside diameter as the seat tube (31.8) so sits on top of that. Seat post fits inside the shim (and seatpost of course) at 27.2

[img] [/img]

The thick silver rim is the thickest bit of the shim that sists on top of the seat tube

Shim is the same outside diameter as the seat tube (31.8) so sits on top of that. Seat post fits inside the shim (and seatpost of course) at 27.2

That's all well and good but why have you got a jar of instant coffee in your kitchen?

That's worthy of a stoning on here. 😉

cos its easy and i am not a "coffee (S)knob"

😆

I like that, is an elegant bit of thinking.

How much shim is inside the frame? That would be the only thing concerning me.

none

seat post is a 27.2 and teh correct size for the frame - the shim is essentially a sleeve OVER the seatpost and NOT into the seat tube. The shim is QR clamped ONTO the seatpost

i cut my rear guard at one side then just bolted it onto my seat tube. took all of 5 mins. easy.

Neat!
Does it spin if you hit the end of the mudguard? I found you needed em pretty tight to avoid that.

Nice solution young Robert 😉

Dur! Of course - in that case it's even nicer than i thought.

ooOOoo - Member

Neat!
Does it spin if you hit the end of the mudguard? I found you needed em pretty tight to avoid that.

No because top QR holds the guard in place 🙂

IGMC

Rob - Member
hmmm - £7 or £20?

You can buy a Crud Guard, a shim and a spare QR seat clamp for £7? Well done.
Don't get me wrong, it's a good solution if you have already bought the Crud Guard, but I didn't.

i like it. don't use mud guards but when i have i've found this a problem.

I am confused. You need to drop the seatpost by 210mm?

Most folk drop it 3-4", having the crudcatcher go up and down by this amount is not fatal.

That said, you've solved your problem...

Rob - Member

cos its easy and i [s]am not a "coffee (S)knob"[/s] have no sense of hunour

[b] IN BOLD IN CASE YOU DON'T SEE IT[/b] 😉

So you undo both QRs when you drop the seat post?

If thats the case, wouldn't it be easier to fashion a QR for the rear mudguard and do away with the shim? How about a shim that goes outside the seat-tube, so is clamped by the lower QR, then you wouldn't need the top QR?

the shim means that the mudguard is ALWAYS at the most optimum height. Otherwise to do this you would have to mark the post in 2 places. This is far more simple.

al the seat post drops by 5". the lowest that the bracket can mount is 70mm from the bottom of the post to clear the tyre at full compression, bracket is 30mm deep, so available drop height is the remaining 5"

Glad that I don't need either a rear mud guard, or to drop my seat post. That's almost as bad as home brew lights 😉

*cough*
Other brands of mudguard are available and [i]might[/i] just have their own QR built in

[url= http://www.chainreactioncycles.com/Models.aspx?ModelID=22989 ]CycraGuard[/url]
[url= http://www.chainreactioncycles.com/Models.aspx?ModelID=25803 ]SKS[/url]
[url= http://www.chainreactioncycles.com/Models.aspx?ModelID=32474 ]Topeak[/url]
*cough*

But do not get around having it at the optimum height without marking the seatpost in separate places

My way is fool proof and always has the guard at a fixed height. You are never moving it up/down the post. The post simply moves inside the shim up and down. Essentially its just an extension of the seat tube.

Oh and tootall their are other brands of cough medicine available!!

[img] [/img]

Rob, i think its ace. you could have invented a cure for AIDs and this lot would still find fault

SKS on a Gravity Dropper does the same for me

All well and good, trouble is those crud guards are; a) possibly the ugliest things in the world, and b) don't actually work that well anyway. Waterproof shorts are the way forward.

Each to their own.

Edit, oh hang on, you ride a Cannondale, ignore point a, it's not applicable in your case... 🙂

I'm a waterproof shorts man (though I'll use guards on the race bike for long shitty weather races, but I don't play with the height on that) but that is a neat solution rob.

If it's any interest to you then USE make shims in black to neaten it up a bit.

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onion - Premier Member

SKS on a Gravity Dropper does the same for me
Posted 5 minutes ago # Report-Post

FFS - if i had a gravity dropper still it would be no problem - but as they way the same as a cold war submarine i got rid!

I ordered a black one luke but CRC sent me silver 🙁

Black paint this arvo!!

Oh, and mudguards that mount with QRs like Topeak and SKS are bloody awful. Go down a rough descent and they end up on a wonk, no matter how clampbustingly tight you do them up.

S_O - you have limp wrists. I've never had a problem with the SKS one that I've ridden with for several years

SKS ones are found jettisoned round our area a lot - commuting mudguards at best!

Rob - Member
SKS ones are found jettisoned round our area a lot

Which just proves you're all limp-wristed round your way.

Bluddy soft suverners

broken not fallen off

those SKS QR's with the orange strapping are ****. rob, don't listen to this lot, your idea is spot on; it works for you and takes out loads of hassle. looks wise the silver is ok too.

That is a very neat solution.
Nice work.

Thanks all (bar a few knobbers as usual)

Great solution with what you already had Rob - as an engineer myself I like your design and implementation. The moaners are just jealous.

Have to say, I don't bother with one myself - I'm in the waterproof shorts brigade. Doesn't mean I can't admire your solution though 🙂

I like my waterproof shorts but find that without a guard they get really wet which runs off, down ya legs, into shoes/sox. No fun 🙁

Thanks BTW 🙂

Thanks all (bar a few knobbers as usual)

lol

Wish i thought of that. Still a flaff though and a elegant solution to a non problem.

wtf is flaff? like a FAFF but spelt wrongly?

Who says FAFF is spelt right! So it's a big FAFF as well.

[url= http://www.google.co.uk/search?hl=en&defl=en&q=define:faff&ei=x7ZMS8ucIoey0gSS7-n4DQ&sa=X&oi=glossary_definition&ct=title&ved=0CAcQkAE ]Well the dictionary is usually a good start when spelling words.[/url]

http://www.allwords.com/word-faff.html

Oh and by the way question marks are used at the end of questions e.g.

redthunder - Member

Who says FAFF is spelt right[b]?[/b]

Your so sensitive.

However, still a FLAFF and FAFF. Actually it's a bit like having a bowler hat with sleeves 😉

[url= http://thesaurus.reference.com/browse/knob ]clicky red thunder[/url]

Is that your middle name ?.

pmsl

not

What are going to achieve next...

World Peace 😉

spose you'll want a pat on the head for that as well. 🙄

the aids cure i created is obviously working

I solve the problem and save money by not having a rear mudguard. You get wet and muddy mountain biking anyway, unless you are doing it wrong. MTFU.

😛

Rob, It's brilliant, as is your sense of humour!

Rob's the Jack Dee of Mountain Biking 😉

suppose its better than being alan carrs less famous brother, wayne!

Was that a Christmas cracker joke...quite good that one.

You are a side splitter 🙂 You'll be doing poetry next.

Funny you mention christmas crackers, am i right in thinking that was the last thing you pulled?

I'm Wayne Carr, so I'm pulling all the time 🙂