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Hammer 663s
Based on this video they seem to be functionally the same.
https://www.teknikmotorsport.com/Motor-Cycle-Suspension-Forks-DIY-Tunin….
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Did you watch the video that MX Tech put out about the "differences"? It's in the above post.
It takes a lot of effort to build the products they offer from scratch. Lot's of late nights... lots of $ spent.
the only way you could make it “closed” is if you sealed off the inside of the lower chrome tube like a 4cs. Thank baby Dale The Intimidator that he did not do that.
btw the 6500 carts are basically cone valve carts without the cones.
"Our G2 Lucky system is a platform designed for applications where more total damping are required. Faster conditions or riders. It’s larger volume, sealed cartridge, bigger Huck Valves etc. still very light low friction. Depending on the rider and applications I may not recommend it over v1."
I went with the v1 based on his recommendation.
Hammer 663s
When Jeremy mentions “sealed cartridge” he’s talking about the cartridge rod seal being a U cup style on the Gen 2, and just a bushing on the Gen 1. This allows the Gen 2 to run higher cartridge pressures under heavy damping loads. This means the cartridge is sealed better, but not closed.
buy these expensive cartridges kits and they still need to have them fine tuned. Also maybe buying springs dependant on your requirements.
More specifically is there a preload adjustment, and I assume it’s done internally if so?
They just did a run of special caps with external preload adjustment built in. Not sure if they’re still available.
Kinda funny in a way, so many debates over the years that a fork without closed cartridges can never perform consistent enough for MX/SX. In spite of this new found information, the Lucky series still remains one of the consistently best reviewed fork setups on the market, for forks at any price. To me that kinda blows the CC being a must have thing out of the water.
The engineering concept of closed cartridge was to eliminate oil cavitation or foaming. Tuners still are aware that certain valving setups do in fact create cavitation in closed cartridge setups.
Pit Row
Many people ride stock systems, and are happy.
1. Stock is generally pretty good these days
2. See”1” and the fact many riders haven’t tried changing things. “The best you’ve ridden is the best you know.”
3. Depending on your needs, stock might be “close” to suitable, or miles off.
Reasons for modification:
1. Stock, no matter how “good”, can only suit a certain rider weight (springs), and a narrow range of damping (clickers)
2. If “you” don’t fall into the design range, stock can be well below par. (Some models come with fork springs that suit one rider weight, and a shock spring that suits another. So the bike suits no one.)
3. If you are someone who want’s/needs the suspension as good as it can be, for their needs, then the best components are required, and they need to be set up to suit the riders needs.
Often when buying high end components, they come “set up” for the best estimation of the riders needs. (Based usually on rider weight, and how “fast” they claim to be.). So this “set up” alone would be an improvement over the “guess” that the stock must be. (The bike could be bought by a light weight amateur woods rider, or a bigger “pro” SX racer.)
Standard components with the correct springs, and “shimmed” to suit the rider (especially if testing and feed back are employed.) are almost certainly going to perform better than the best components off the shelf.
Professional riders use the best components: A kit, factory etc, then spend huge amounts of time “tuning” them.
The majority of riders ride stock, and never service it.
Both groups can be satisfied. (Different needs and priorities.)
Now 100mm
130mm oil height. 5mm preload.
No bottoming issues.
Spring rate suggestion for a 280lb rider in full gear, Lucky Carbons?
Post a reply to: Any one have experience with MX Tech Lucky vs Lucky Carbon?