Triumphrat

Spartan Andy

I have been trying to find out why my bike, when in first or second gear and with the bike moving along at low speeds I can hear a Clunk when I press the clutch in,

I have replaced so far new chain and sprockets, rear wheel rubber cush drive, All parts are triumph original,
Clutch cable 2mm has freeplay, Chain freeplay around 40-45mm,
I use a Wurth dry lube for the drive chain,

Any ideas

Lord Kelvin

I found that oil brands and types make a big difference in how well the transmission/clutch works. Mineral oils make for clunky shifting, Rotella T6 works all right for a short while, then shifting gets clunky again. Valvoline T4 synthetic, much the same as Rotella. Only oil I've used so far that works is the Factory specified Mobil 1 T4.

Spartan Andy

Hi, I am using Silkolene pro 4 plus 10w-50 fully syn oil at the moment,
The gear shifts are good for this type of bike,

Strange that I get this click sound with the bike moving along at low speeds when I press or release the clutch, without changing gear,
This only starts to happen when the bike temp is hot (6 Bars) in London Traffic,

I tried different drive chain settings from tight 35mm to around 45mm to check it was not chain slap, But no difference,

It's been the same since I bought the bike in early 2011,

Going to try a Motul chain grease soon, just to confirm its not the Dry lube grease I am currently using,

Spartan Andy

Just an update, Wurth Dry Lube binned, Now using Motul paste chain grease , No clonks, clanks, nothing heard, Easy £7.00 fix,

But wasted £70 as I did not need to replace the rear wheel cush drive,

Bad Diagnoses on my behalf, But can call it ‘Good Engineering Practice’,

Lord Kelvin

It's what seperates us from ... plankton.