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apart from bascis like regular oil changesand bigger engines being more capable generally speaking - what do you think is a reasonable expectation for a 1000cc bike please?

1000cc bikes should do 50K without anything serious if they have been serviced imo, possibly up to 75K but what do you reckon? Of course, there's other related items, bearings for both steering and axils, clutches and final drive transmission but I'm on about the engine, carbs and gearbox.

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breakdowns 1.jpg

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Valve gaps...
Timing chain...
Deteriorated fuel lines...

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2 hours ago, Snakebite68 said:

Valve gaps...
Timing chain...
Deteriorated fuel lines...

2 hours ago, Snakebite68 said:

Valve gaps...
Timing chain...
Deteriorated fuel lines...

yes, one has to keep those things maintained - what actually finishes motors, probably missing gears and the g/box not worth pulling apart and smokey exhausts, loss of compression I suppose. What do you reckon one can get out of a Thunderace?

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What do you mean "get out of a Thunderace?"?
Speed? Acceleration? Reliability? Money?

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On 28/07/2025 at 21:09, Snakebite68 said:

What do you mean "get out of a Thunderace?"?
Speed? Acceleration? Reliability? Money?

mileage, saw this recently:-

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WTF did he call it? A 'Thunder four'???

I can't remember exactly offhand, but I've got in excess of 60k on mine, 3/4 of that I've put on it.
I'm not terribly good with upkeep either, but mines still going strong (although it looks like I need a new radiator :( ).

I would suggest looking into getting a heavier drive chain on it though. I went through 3 or 4 stretched chains in my first two years with it before getting an uprated chain-set. I've not had to replace my chain since (another 3 years...)

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thanks for the reply snakebite, I was mulling over buying another thunderace, one with less miles but I don't think I will, hence mulling over what sort of miles one might expect. Chains do have to be kept lubed of course and any wet weather seems to take the lube off so remembering to attend to that after a wet weather episode is the trick I think.

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Aaah, no, it was simply the stress I was putting on the chains through acceleration that was stretching them. The heavier chain solved that problem.
I try to keep it in the speed limits, so I get my jollies from acceleration and cornering... lol

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