Protonhound

Turbocharged
Joined
Apr 28, 2023
Messages
511
Location
Calaveras County, California
Ride
2023 Rocket 3R
I'm trying to get a general feel for the longevity of our beasts given the following conditions.
- I've put 11k miles on my 23' R which I bought last year February
- I let it warm up a bit before each ride
- I don't start ripping on the throttle until I've been riding for a few miles
- I change the oil and filter every 3k miles using full synthetic
- I use the recommended 91 octane Chevron or other reputable quality fuel
- I have the Penner tune and Vandemon exhaust
- The bike rarely gets exposed to rain and lives in my shop when not used
 
Have started out on bikes back in the early 1970s I kind of grew up with the principle back then that by 20,000 miles what ever one was riding was 3 parts worn out!

I'm fortunate to be able to work (very ) part time in the Triumph Factory Visitor Experience (FVE) facility at the Hinckley Triumph HQ, we often see visitors bikes with 50,000+ miles and many at double that, I've seen a couple of 2.5 R3' at 60,000+ miles. The 2.5 is lightly stressed and heavily over engineered, cared for with regular clean oil and maintenance these bikes are capable of covering massive mileages.
 
To answer you question the 2.5L is every bit as good as the 2.3L. A member (former member?) of this forum IDK had just a smidge of 250,000 miles on his Rocket III and it had a lot of work done over the years but the motor didn't quit. When he sold it I believe the guy had the engine overhauled and is still riding it to this day. Basically you'll wear out before your bike does.
 
Air cooled Indians can get over 500K miles on them. A low stress 3 cylinder liquid cooled motor will last several hundred thousand miles easy. The Rocket 3 will last until you tire of the bike, stop riding it and let it rot in the corner of the garage or it gets in an accident.
 
My other bike (GSX1400) has a big low stressed engine and the miles some owners get from these is very impressive, you never hear of one grenading itself. Just oil changes & basic maintenance & they're bullet proof. It's good to know the 2.5 motor is in the same league.
 

There's one with 100k. Only thing that broke was the clutch at 40k which Triumph replaced for free because it was installed wrong.

While some people are quoting Rocket III milage I wouldn't. This is a new engine with a new design. That said it very well could have the same results. I'm looking forward to what mine will achieve.
 

There's one with 100k. Only thing that broke was the clutch at 40k which Triumph replaced for free because it was installed wrong.

While some people are quoting Rocket III milage I wouldn't. This is a new engine with a new design. That said it very well could have the same results. I'm looking forward to what mine will achieve.
I wonder if that clutch being installed wrong has anything to do with this Question about Noise while releasing clutch 🤔
 
I've been contemplating a 7k mile round trip from CA to Cape Cod and back for next May and now the idea of putting that many miles on the bike in 2 weeks is not an issue any more at least.
Screenshot 2025-06-15 165736.png
 
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