Tri Glide Oil Change Field Report
I Have Done My Own Oil Since 1974. Then a $340 Tri Glide Bill Told Me I Was Done.
June 3, 2026 · 9 min read
I added the third wheel so I could keep riding. I did not expect to lose my own garage with it.
There is a thing nobody warns you about when you go from two wheels to three. It is not the surgery and it is not the ride. It is the first time you go to do a job you have done your whole life and find out they built the machine so you cannot.
I am not a mechanic and I am not selling anything. I am a seventy year old retired ironworker who walked high steel for thirty eight years and rode two wheels for fifty one of them, until my hip finally quit and I traded my Street Glide for a Tri Glide Ultra so I could keep rolling out with my chapter.
I am writing this for every rider who switched to three wheels to stay in the wind, then sat on his own garage floor feeling like the dealer had taken the wrench right out of his hand. Because a man they call Smitty handed me the fix at a rally, and he asked me to pass it on.
Why the dealer has you over a barrel, in plain English
A Tri Glide takes oil in three places. The engine, the transmission, and the primary. We call it the three holes. Draining and filling them is nothing. A man can do that part on a milk crate in twenty minutes the way he always has. The trouble is the oil filter. On the back of the engine that filter canister sits a hair away from the crank position sensor, a little plastic piece that costs a small fortune if you so much as crack it. A regular cup wrench or a strap wrench will not slide over that filter without pressing right into the sensor.
So Harley tells you that you need their own special cutout filter wrench, a proprietary part with a number on it that the dealer counter is always somehow out of. The bolt is not the problem. The clearance is the problem. And it is the same story all over this trike. The derby cover. The exhaust shield bolts. The rear caliper that eats pads every twelve thousand miles. Every one of them lives in a tight gap where a normal tool bangs into something before it ever seats.
I tried everything in the box. Here is what each one did.
- Cup-style filter wrench. Would not slide over the filter without pressing straight into the crank sensor.
- Strap wrench. Spun on the canister and gave me nothing in that tight a gap.
- Flex-head ratchet on the caliper and derby bolts. Seated, then folded the second I leaned on it. The flex joint is the weak point.
- Swivel socket and a u-joint. Walked sideways and put the load right onto the side of the bolt head.
- Harley's own proprietary filter tool. Out of stock at the counter, and one more special tool for one more job.
A twenty minute job that turns into $340 and a week of waiting
Here is the part that put a knot in my stomach. The dealer wanted three hundred and forty dollars for the full service, and a week before they could even take it in. For oil. The same oil I have changed in my own garage since I was nineteen years old. And it is not just the oil. A rear brake job on these trikes runs eight hundred dollars and up at flat rate, because the caliper hides behind the fiberglass fender and the labor is all access. The work is twenty minutes. The reach is the whole bill.
So I sat on the concrete that afternoon with a filter I could touch with two fingers and could not get a tool around, looking at a photo taped to my toolbox of a twenty two year old kid with hair to his shoulders on a 1971 Shovelhead. That kid did all his own wrenching with a coffee can of sockets. Fifty years later a machine I paid thirty thousand dollars for had me beat in my own garage. My wife brought a sandwich out to the bench and did not say a word. She knows what it does to me to be told I cannot do a thing I have always done. The sandwich went cold next to that photo.
A filter I could reach with two fingers, and a sensor behind it that one slip would cost me a fortune.
Then a retired Harley wrench at the rally handed me a bar
That weekend my chapter rode down to the fall rally in Maggie Valley, and I went, because that is where the old riders are. There is a man up there everybody calls Smitty. Seventy five years old, thirty one years a master tech at a Harley store outside Asheville before his eyes made him hang it up. He does side work out of his garage for half the chapter now. I told him about the filter and the sensor and the three hundred and forty dollars and the week of waiting. He did not laugh at me. He just nodded the way old wrenches nod when they have heard a story a hundred times.
He went to his own trike and came back with a slim flat steel bar, about a foot and a half long, square drives on both ends, a fixed bend in the middle. He had me press my thumb against the drive end. Something moved inside it. A roller chain, running the whole length of a sealed steel body.
"The chain takes the bend for you."
The thin body slides flat into the gap where nothing else fits. The chain carries the torque around the bend, dead square on the bolt, so it never folds like a flex-head or walks like a u-joint. Smitty told me he has done the three holes, the brakes and the exhaust on every trike in his chapter with a bar like this, and has not bought one of Harley's special tools since.
The sealed chain is the trick
A roller chain inside the steel body carries torque around the bend, so it never folds like a flex-head or walks like a u-joint.
Slides past the sensor
A slim half-inch-thick bar reaches the oil filter from the side, past the crank position sensor, without ever touching it.
Your own sockets
Square drive on both ends takes the sockets already in your box. No proprietary Harley tool, ever again.
It reaches. It is honest.
This solves access to a bolt or a filter you cannot get a tool on. It is the right shape for the job, not a miracle for a part already worn out.
It only comes from one place
You will not find it at the parts counter and you will not find it on Amazon. The maker sells direct from their own site only. Eighty nine dollars, shipped to your door. That is less than one dealer oil change, and a small fraction of one rear brake job, for the one tool that hands you back every buried job on your own trike.
What happened next
Other riders who stopped paying for access
"Spun the filter off past that crank sensor on the first try. Did all three holes in my own garage in under half an hour. First oil change I have done on this trike in three years of owning it. Felt like myself again."
"Dealer quoted me eight hundred and seventy five for rear brakes because of the fender. Got the caliper bolts with this bar in twenty minutes. The reach was the whole job, just like the man said."
"Bought a cheap one off Amazon first. It folded behind the exhaust shield just like my flex-head did. The real one with the chain does not flex. Should have started with it."
Smitty learned it from an old hand years ago. Now he keeps a count, and he is passing it on.
Get yours before your next service bill
If you ride three wheels, and a Harley dealer has ever told you that you need their special tool and three hundred dollars to do a job you have done your whole life, you already know exactly what this is worth.
American Iron Field Notes is a reader-supported publication. This is a first-person account from a rider and reflects his personal experience. The Savary offset extension wrench is a hand tool designed to reach fasteners and filters in tight, blind locations. It improves access; it is not represented as a remedy for parts that are worn or seized beyond normal service. Always follow proper service procedures and torque specifications. Results vary by motorcycle and condition.
