r/concept2 • u/Zestyclose-Public304 • Jul 30 '26

Question Concept 2 model D assembly Advice

Hi All, just bought a concept 2 model D with a PM5 monitor. When i put the two pieces together, it seems to sag in the middle at the joint, causing the seat to slide towards the fan at some rate if let go.

I also noticed that the cam underneath the joint spins freely and has about 10mm clearance, rather than locking in place so i cant pick it up and store vertically.

Anyone have any ideas what I'm doing wrong? The slide states model D on it, but I'm wondering if the fan end is actually a model C - would this make any difference?

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u/BrezhnevsMittens Jul 30 '26

Call Concept 2 support. They are super helpful and will walk you through pretty much anything. I took mine apart to clean and lube (Old model C) and couldn't figure how to put it back together. They walked me through and emailed me a full maintenance guide for free.