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the 'there's no such thing as a stupid question' bike maintenance thread

magicbastarder

is there a simple list of chemicals which you should not get near disc brake pads? i.e. would even something like a detergent cause issues with contamination; i was wondering as i was cleaning the bike earlier if i can be overcautious in cleaning the bike near the brakes.

any tips on looking after a steel frame? my latest purchase has mountings for racks and also a couple of unthreaded holes - should i tape those up to keep water out, or leave them uncovered to let the water out should it get in?

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dahat

What are the exact measurements for crank arm clamp bolts for 6800?

I need to get stronger ones as I keep rounding the current ones changing the power meter crank.

Type 17

site_owner wrote: »

my bike is a giant road bike, with 700c wheels and disc brakes. currently has an 11-speed rear cog.
the wheels are PR2

i cant figure out what i need to buy (wheel + hub + rotor + cog ?) so that i have a spare set to swap out.

thanks

Our bike shop has a used pair of PR2's with discs and rim tape on them - I'll check a price if you're interested. You'd need a cassette and tyres and tubes.

site_owner

Type 17 wrote: »

Our bike shop has a used pair of PR2's with discs and rim tape on them - I'll check a price if you're interested. You'd need a cassette and tyres and tubes.

Yes, thats not a bad idea, let me know what they would cost

Type 17

Will do, but we’re not back until the 2nd Jan.

ItsLikeThis

Had a car hit me on my side, I think the end of the handle bar took most of the hit. I managed not to fall thankfully. It's an aluminium mtb... should I have it checked for damage by a professional? No visible damage that I can see.

CramCycle

ItsLikeThis wrote: »

Had a car hit me on my side, I think the end of the handle bar took most of the hit. I managed not to fall thankfully. It's an aluminium mtb... should I have it checked for damage by a professional? No visible damage that I can see.

All most professionals will say to you is they cannot stand over anything involved in a crash (but that you are probably grand). Probably good to get in writing for the insurance company if thst is the route you are going down.

site_owner

If insurance are involved and no-one will stand over the frame it will probably be written off. If the bike cant be certified safe then potential liability then lies with the insurance company if it fails at a future as a result of damage from this accident.

A few hundred euro now vs a potential personal injury claim in future from their POV.

darconio

I just bought my first set of wheels: I was quite proud of myself as part of the process involved learning how to remove the cassette and the brake rotor from the old set. Everything was going fine but the new wheels came with a different lockring for the rotors, apparently the hub is configured for the "campagnolo lock ring" (https://bikedepot.com/product/campagnolo-disc-lockring/) while what I had was the standard shimano center-lock lockring. Fortunately the wheels came with a stock cheap-looking lock ring : is there an adapter or any way to use the shimano one?

triggermortis

dahat wrote: »

What are the exact measurements for crank arm clamp bolts for 6800?

I need to get stronger ones as I keep rounding the current ones changing the power meter crank.

https://www.superstarcomponents.com/en/shop/mountain/mountain-titanium/m6-titanium-bolts/

You should have a job rounding off titanium bolts!!

Type 17

site_owner wrote: »

thinking it would be handy to have a spare set of wheels for my bike, with bigger winter tyres for bad weather days.

what i cant figure out is what type of wheel to buy. are they all the same or difffernt by bike type?
id like to buy second hand when i see a cheap set come up but i cant even figure out are the options

my bike is a giant road bike, with 700c wheels and disc brakes. currently has an 11-speed rear cog.
the wheels are PR2

i cant figure out what i need to buy (wheel + hub + rotor + cog ?) so that i have a spare set to swap out.

thanks

Type 17 wrote: »

Our bike shop has a used pair of PR2's with discs and rim tape on them - I'll check a price if you're interested. You'd need a cassette and tyres and tubes.

PM sent.

S_D

Looking at a new wheel set and really dont know much about different wheels to make a decision!

https://www.donedeal.ie/bicycles-for-sale/zipp-404-carbon-wheels/20675352 <- Older Zipp

https://www.donedeal.ie/bicycles-for-sale/mavic-cosmic-carbone-slr-front-wheel-clincher/20685584 <- Cosmic SLR

This would be using for TT. Ideally just looking at fronts only, but would a better wheel be the older Zipp or something like that Cosmic? Or is it much of a muchness?

magicbastarder

keep in mind that if you *do* buy a back wheel, the zipp is listed as a 10 speed one.

S_D

magicbastarder wrote: »

keep in mind that if you *do* buy a back wheel, the zipp is listed as a 10 speed one.

Thats ok , I run 10 spd

magicbastarder

i may be proving my own thread title wrong here, but was musing on the way in - what bike components could you clean in the dishwasher?

the salt will be a big limiting factor - but cassette and chainrings, anyway? jockey wheels too?

LollipopJimmy

magicbastarder wrote: »

i may be proving my own thread title wrong here, but was musing on the way in - what bike components could you clean in the dishwasher?

the salt will be a big limiting factor - but cassette and chainrings, anyway? jockey wheels too?

I've put cassette, crank, chainrings all in the dishwasher. A rinse and a spray of something like WD40 is essential after though. I'd have no problem sticking brake calipers in either, once they get lubed after

triggermortis

I’ve put most of a group set in a dishwasher before - minus the bottom bracket - and everything came out sparkly and clean. No issues at all. Made sure it was dry and lined after.
Also put a pair of shoes in there one time too.

CrowdedHouse

I fear it would be hazardous to my health to wash bike parts in the dishwasher - and I don't mean residue left on my coffee mug...

LollipopJimmy

CrowdedHouse wrote: »

I fear it would be hazardous to my health to wash bike parts in the dishwasher - and I don't mean residue left on my coffee mug...

I was stung with the brake calipers of an old car in the dishwasher, prepping them for rebuild

It did not end well for me

triggermortis

LollipopJimmy wrote: »

I was stung with the brake calipers of an old car in the dishwasher, prepping them for rebuild It did not end well for me

Car brakes would be full of brake fluid which is good for braking but will destroy 99% of anything else it comes into contact with.
Bike parts are just generally dirty and greasy.
I washed my parts in the dishwasher and made sure I had time to run it again, empty, before the boss came home to see what I was up to ðŸ˜œ

LollipopJimmy

triggermortis wrote: »

Car brakes would be full of brake fluid which is good for braking but will destroy 99% of anything else it comes into contact with.
Bike parts are just generally dirty and greasy.
I washed my parts in the dishwasher and made sure I had time to run it again, empty, before the boss came home to see what I was up to &#55357;&#56860;

To be fair they were stripped to nothing and had been cleaned, the dishwasher gave them an extra clean, the only fluid in the would have been residue on the piston or in the piston housing. I was prepping them for paint and rebuild

CramCycle

Dear lord, I am going to get in so much trouble when I try this.

magicbastarder

there was me thinking it was just a funny jokey question.

Type 17

In my early teens (1985), I stripped the axles and freewheel off a pair of yellow-but-filthy Skyway Tuff II BMX wheels and put them in the dishwasher when my mum was out. Got them out before she came home, and she never knew.
The wheels looked amazing, but were just as dirty a few months later...

darconio

We might be dumb and useless in many things (I would have to argue with that btw...), but male's creativity to get things done with minimal effort cannot be beaten :pac::pac:

Mickiemcfist

Type 17 wrote: »

In my early teens (1985), I stripped the axles and freewheel off a pair of yellow-but-filthy Skyway Tuff II BMX wheels and put them in the dishwasher when my mum was out. Got them out before she came home, and she never knew.
The wheels looked amazing, but were just as dirty a few months later...

I'm more shocked that you had a dishwasher in 1985, I was the dishwasher in my house well into the late 90s!

cdaly_

I tried it once with cobblelock bricks that had been stained by an engine oil changing incident. They came out lovely and clean but the dishwasher rack wheels used to crunch on residual sand for months afterwards...

magicbastarder

we have a winner.

dahat

darconio wrote: »

We might be dumb and useless in many things (I would have to argue with that btw...), but male's creativity to get things done with minimal effort cannot be beaten :pac::pac:

This sums it up.

CramCycle

cdaly_ wrote: »

I tried it once with cobblelock bricks that had been stained by an engine oil changing incident. They came out lovely and clean but the dishwasher rack wheels used to crunch on residual sand for months afterwards...

Bottle of coke and a brush might have been quicker.

The coke was for the bricks, not for energy to scrub the bricks, just to be clear.

magicbastarder

magicbastarder wrote: »

we have a winner.

this is your prize, i thought it apt.