Wilbers competition 643 Install

rick danger

Turbocharged
Joined
Jun 18, 2025
Messages
604
Location
Durham Ct.
Ride
'20 KTM 1290 SAS '22 KTM 1290 SAR '24 rocket 3 GT
I ordered this from EPM around Thanksgiving on their black Friday sale. Just came today. I'll post pics of the install when I get on it.
PXL_20260211_192816931.jpg
 
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lovely! what’s the travel and preload measurements on that?
I just gave them some answers to a questionnaire when I ordered it. Here's a copy and paste of the email they sent. I wouldn't imagine the travel is much different than stock.
mail
Shock Absorber Type 643 Competition QS × 1
SKU: 643-1277-00-Nigh
Edition: Nightline (+$90)
Preload Adjuster: Hook Wrench
Lift/Lowering: Std
Vehicle: 2020 - 2025 Triumph Rocket III GT / R / TFC | Y101
Model Year: 2024
Stifness Setting: Comfort
Riding Style: Road
Riding Weight (in lbs): 215 lbs (98 kg) lbs
Solo Seat Time (Percentage): 0% %
Passenger Weight (in lbs): 0 lbs (0 kg) lbs
Passenger Seat Time (Percentage): 0% %
Luggage Weight (in lbs): 10 lbs (5 kg) lbs
Luggage Seat Time (Percentage): 100% %
Passenger and Luggage Seat Time (Percentage): 0% %
Additional remarks: thanks
mail
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Well ok, got it done. Its easier to type this on the computer, so I'll do all my blabbin' here, and add pics from my phone in a post below. So as @Nashvegas said, the top/forward bolt is kind of a PIA. I guess it would have been to much to ask triumph to figure out a trapped nut for it. You'll see in the pics I taped two wrenches together to get the reach. 14mm open end. you have to get a flashlight in there and put eyes on it to see what your up against. I taped the wrenches together so they formed a gentle C shaped curve. That worked best. Neither nut is a lock nut, so blue loctite went on. Two 5mm (wrench size) Allen's hold the OEM shock adjuster knob. There might be an easier way to hold the nut in the open end for re installation , but I hot glued it. Came right off when the nut and bolt were tight. Just some twisting. The reservoir touches the hugger, and I think it is actually pushing it closer to the tire. But there looks like there should be enough room still. I have an Exedra 55 series tire on, and bent the hugger with a heat gun to get more clearance. So if you have the stock 50 series on it with an un altered hugger you should be fine. I actually think I remember @Nashvegas commenting on how close it was. All they needed to do is rotate the reservoir a little. But you cant do that yourself. Big torx for the bolt heads. Not sure the number. I guess that's about all I can think of....edit: you can see in one of the pics that the top bolts hits the plastic if you take it straight out. I pryed it a little with a screwdriver and it comes out. You could Dremel it a little I guess, but it might be a safety feature to keep the bolt from coming all the way out? With the non lock nuts it has......And....I wont be able to get a test ride for quite a while. Still lots of snow here. And salt.
 
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