GT85 or WD40?

batch78

Just wondering which one you guys use and why?

Mog Uk

GT85 - Only because I got 6 cans for a tenner.... When that runs out I'll go back to using Tescos own brand, cheaper and does the same thing.....

Bikedevil

GT85, WD40 has a tendancy to make thungs rattle/fall apart

Top tip: Put some GT85 on a rag and wipe your frame with it, it'll makeit shiny and leave a layer of Teflon so its easier to clean next time

nicklouse

neither.

batch78

Nicklouse do you use any kind of maintenance spray to displace water etc? If so which one?

nicklouse

nope. clean, dry and lube.

Petrol if a de-greaser is needed.

Or a biodegradable de-greaser (depends where i am).

ddoogie

I use GT85 for things like the front mech and the cables but that's about it. Generally use a biodegradeable degreaser for all other purposes.

rob cole

yeah i don't use either of those, completely unecessary

use cycle specific disc brake cleaner for disc brake rebuilds and rotor contamination

use "grease buster" for degreasing really mucky stuff or muc-off for bike cleaning

use finish line, pedros, white lightning chain lubes

use Finish line silicon detailer (polish) to keep mud off..and make it look nice

shin0r

Gt85 works ok as a chain degreaser as well as leaving a nice teflon finish on the bike so it stays a bit cleaner. WD40 does pretty much the same thing but doesn't contain teflon. Some people think it can contaminate grease. It might do. Just don't get it on your brakes.

Fairy liquid and hot water also works fine as a bike wash / degreaser.

dennisn

It's my understanding that WD40 is not a lubricant. Never heard of GT85. Then again
I'm from across the pond.

Dennis Noward

ddoogie

It is an oil (as far as I know) so it will lubricate to a certain extent, just not well enough to do a chain. The teflon in GT85 does a better job, but again, not good enough to do a chain. It does clean up a frame nicely though.

stumpyjon

Prefer GT85 but only as a water displacer, found my new chain would start to rust if I didn't use it. Still hand dry the frame / chain as much as possible though. Lube everything up with an appropriate lube, e.g. finishline wet though thinking of changing to one of those wax chain lubes based on comments on other threads.

I use an aerosol car wax to keep the bike shiny, spray it onto a rag and then apply and buff up, it's tempting to spray it directly onto the bike but this can be disk suicide.

Question, do you guys take your disc pads out regularly and clean them? If so what do you clean them with, is it a mistake to use disk cleaner?

ddoogie

I use methylated spirits but isopropyl alcohol would also be a good choice.

supersonic

WD40 is mostly a solvent - however it does leave a residue.

There is no real need to keep removing pads and cleaning them.

Anonymous

WD-40, it's good for this....
http://www.snopes.com/inboxer/household/wd-40.asp
I would never use WD-40 on my steed. Actually, I'll never use it for anything besides a solvent.

batch78

Why bike specific disc cleaner as opposed to car disc cleaner?

nicklouse

car spec tends to have oils in it to stop the cast iron disc rusting.

rob cole

and you know with cycle specific disc cleaner its not going to attact the caliper seals or other perishable parts...

batch78

Good point nicklouse and rob cheers, looks like i'll have to stop using all the freebies from work now then!!

konut

hot soapy water and finish line teflon dry,in bottle form saves covering my discs with a rag.

Jimbob_no5

a thing ive found to keep mud and water off your while riding is rain-x, it repels rain from wherever you put it

on topic GT85 is what i always use

ddraver

When GT-85 do the awesome straw/not a straw thing that WD-40 do on the new cans i ll be back to using GT

given that i loose the straw making the can useless for most jobs, it gets expensive

stevie the freerider

some farmers put WD40 on cows to stop flys biting them
see here:http://www.snopes.com/inboxer/household/wd-40.asp

pittpony

stevie the freerider wrote:

some farmers put WD40 on cows to stop flys biting them
see here:http://www.snopes.com/inboxer/household/wd-40.asp

LOL - I'd love to know who first found that out :shock:

prophet_1000

ddoogie wrote:

I use methylated spirits but isopropyl alcohol would also be a good choice.

I would say Glenmorangie or Ardbeg is a better choice but whatever floats your boat

LOL

I dont clean the pads, drilled/wavey rotors are pretty good at cleaning the pads up for you, if you do get oil or other on the pads I use brake cleaner which evapourates ( I work for BMW so it comes pretty cheap, I mean free , also been using it to degrease my chain for over 2 years now as it dries completely, just have to make sure properly lube chain afterwards )

Not had a problem with oils in car specific cleaner upto yet on discs (fingers crossed) as I said dont use it unless essential.