GT85

Hobo Mikey

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May 22, 2020
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Years ago I used to use nothing but GT85 on my chain. Before every ride a quick spray and away. When the bike had a good clean another spray on the chain and cogs and good as new.
Now in the bike shops are lines of lubes for chains including EMTB special ones.
So is GT85 ok to use on chains before a ride or are the others better. (y)
 

R120

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Apr 13, 2018
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GT85 now do a range of bike lubes, cleaners etc - I tried the bike wash last year and it was very good.
 

Frankenbetty

Member
Jun 6, 2020
54
44
Llandegla
I only use it to de water the chain after using a chain cleaner and washing the degreaser off. it’s not a lubricant as such like oil as it evaporates and leaves a Teflon residue but it’s not long lasting and your drive train will wear out quicker than using proper chain lube
i lube the chain after it’s evaporated/dried and also put plastic carrier bags over the discs and callipers when I’m spraying it around
it works great for de gunking/cleaning the cassette as well
 
Last edited:

Frankenbetty

Member
Jun 6, 2020
54
44
Llandegla
I should add to be mindful of bearings and GT85 as well. it can actually wash away any grease and kill pivot and hub and bottom bracket bearings pretty quick. The propellant in the aerosol is actually a solvent and will wash away any grease
if you don’t believe me smear some grease on something and give it a spray. It makes short work of removing it.
its good stuff and has its uses but it’s not really a lubricant
 

steve_sordy

Wedding Crasher
Nov 5, 2018
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Lincolnshire, UK
I use wet lube when it's wet and dry lube when it's dry.
Wet lube resists wash off, but it's a bit sticky and can be awful in dry dusty conditions, which is why in dry conditions I use...
Dry lube sets dry after the carrier fluid has evaporated. It resists muck pick up.
 

EebStrider

Well-known member
Apr 18, 2020
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763
Surrey, UK
I use GT85 as a degreaser to clean the chain, cassette etc. It’s also good to wipe down the frame/ wheels etc with, and smells nice!
 

thebarber

E*POWAH Elite
May 28, 2018
986
598
Norfeast
It's the only thing I use, and reading some of the chain / cassette issues some are having its not doing a bad job.
I did buy a chain cleaner which came with a bottle of lube but only used it once.
As for doing other products it's part of the WD40 family
 

Landy Andy

Active member
Feb 8, 2021
192
190
Herts
I was giving my new Focus a good coating of GT85, but then I noticed that some of the plastic components were cracking, and breaking. The only reason I could put this down to was the liberal application of GT85, so I’m less keen to use it now, especially in the quantity I was.
 

Hobo Mikey

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May 22, 2020
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Another good one is good ol fashion 3 in 1 oil. Remember as a kid always using that on my bike chain. (y)
 

Funkeydunk

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May 28, 2019
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A mate of mine used this on his chain and measured the wear, ironically is wasn’t scientifically valid but got almost the same range out of a chain using GT85 as he did with any other lube, some older gents use 3 in 1. That’s seem to do fine. Me personall, I use the WD40 wet lube, it smells lush and does a reasonable job, I prefer it to the muc off stuff as it’s easier to get off.
 

MB1

Member
Dec 28, 2019
38
31
Cumbria
It’s all I have ever used on my road bike and mountain. I use it after every ride, after washing and to chase moisture from all the bearings and to lube the fork and shock seals. I know there is a previous post saying it’s bad for bearing grease, but I’ve been using it for years without issue. The local ebike shop in Cumbria swear by it too, do all their rentals with it. I guess ultimately it’s your choice.
 

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