The last word on break-in?

[talkToTheHat]

https://youtu.be/xpoglovyy_8

Two identical engines, one broken in gently, one brutalised. No discernable difference. Looks like the ride hard from the first mile camp have it.
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Bandit. does. everything.

[Polarbear]

Interesting.

I think his comment on breaking in being a bit of a hangover from when manufacturing techniques weren't so good is a fair one.

I still wouldn't cane my own brand new bike from the word go though, it wouldn't feel right to me.
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Triumph Trophy Launch Edition

[stevo as b4]

Measuring engine wear after 1000miles tells you fuck all, and it's a poor attempt at trying to definitively answer the question.

They need to measure engine wear and tolerance after say 50'000m and also much more important than engine wear is engine performance. The two engines should have been dyno tested and ideally compared on track with lap times and acceleration.

All modern engines are well finished and built by the factories now with low variation in tolerances, so they will have a long lifetime normally way past the life of the bike. Therefore it's more important to measure performance during that time instead of trying to find evidence of difference in wear rates.

I'd be much more interested in a BSB team carrying out such a comparison between running in methods and seeing if lap times and dyno runs are any different.

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[Riejufixing]

[Sister Sledge]

It's a shite test. It doesn't bring in a whole ramp of variables.
For starters the mileage - it doesn't give anything a chance to wear. Then there's the location of the test - it doesn't bring in colder outside temperatures that would affect internal tolerances more. It also wasn't real world testing - bring in some short journeys where the engine doesn't warm up much.

Are engines not broken in slightly on a test rig these days before being dropped into a frame? I'm sure they are.
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CCM 404 DS

[redeem ouzzer]

Three heat cycles then thrash the bollocks off it.
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Be a REAL MAN!

[notbike]

I watch a lot of this guy's videos and usually what he says makes a fuckload of sense.

Part 1 https://www.youtube.com/watch?v=Ij7-LyOFlUU
Part 2 https://www.youtube.com/watch?v=nOb_PE7DKvE

[MarJay]

The benefit for harsh 'break in' or run in is supposed to be to give more power. If it doesn't give more power, then there is no point.

However, I'm sure the longevity of an engine is not helped by doing this, so I think that the recommended break in or run in procedure is the way to go.
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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[goto10]

[Polarbear]

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[Ash-69]

I bought my FZ1 Fazer with just shy of 1000 miles on the clock, it was only a year old but had been handed over by Yamaha to support the TT travelling marshals, as a consequence the hero blobs had both been chamfered off and the rear tyre was FUBAR, so I doubt very much whether anyone had even considered a schedule for running it in

The bike was being sold at a considerable discount with a carbon Akro pipe so I figured what's the worst that can happen.

5 years and 38,000miles of not particularly gentle riding later, but with a yearly service & oil change, the worst is sweet FA .....

Hope this bloody post hasn't jinxed me ........
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FZ1-S Fazer (licence killer😢) , CRF1000L - Adventure Sport

[MarJay]

[goto10]

[notbike]

Just going to add, I always break things in as specified by the owner's manual. When it comes to this discussion, people often forget that this thing we take for granted was written by the actual engineers who built the bike.

They know better than internet hearsay, popular/unpopular opinion, broscience, and the grapevine.

If there are any scientific studies done that fairly conclude that the manufacturer's break in will ruin my bike, then I would deviate from it.

Otherwise I'd just trust the damn manufacturer. They're the people who built the bike, wrote the manuals, and have to sell a fuckload of these things to make a profit.

I doubt they're going to want thousands of people showing up to dealerships with fucked up engines because they got it wrong in their manual.

Boggles the mind.

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[chickenstrip]

Let me know when we get to the last word
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Chickenystripgeezer's Biking Life (Latest update 19/10/18) Belgium, France, Italy, Austria tour 2016 Picos de Europa, Pyrenees and French Alps tour 2017 Scotland Trip 1, now with BONUS FEATURE edit, 5/10/19, on page 2 Scotland Trip 2 Luxembourg, Black Forest, Switzerland, Vosges Trip 2017
THERE'S MILLIONS OF CHICKENSTRIPS OUT THERE!

[stevo as b4]

[MarJay]

[ThatDippyTwat]

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[kerr]

[virus]

I dont know what you lot are waffling on about, but to answer your question, the last word on break in is 'in'. Hope this helps.
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own: 81 xs1100g...
owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.

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