Train your swing
Krazy Weights are a compact and adjustable training weight system that attaches to the knob of a bat, the grip of a club, or the butt of a stick. Building real swing speed, power, and control using the gear the athlete already owns.
Why Krazy Weights?
A different approach to swing training.
Krazy Weights put adjustable training weight at the knob of your bat or the grip of your club. It's a simple way to add weight to the equipment you already use.
Weight at the barrel
Donuts and sleeves add weight around the barrel of the bat, away from the athlete's hands.
Weight at the handle
Krazy Weights attach at the knob of your bat or the grip of your club, keeping the added weight close to your hands. Adjust the weight and train with the equipment you already own.
The Evidence
A heavier warm-up isn't always a better warm-up.
Studies of weighted-bat warm-ups raise three questions about a familiar baseball routine.
In one small study, players felt faster after removing a weighted ring, even though their first swing measured slower.1
One study found that a donut warm-up altered the swing pattern when players returned to a normal bat.2
Another study found faster subsequent swings after light- or normal-bat warm-ups than after a heavy-bat warm-up.3
- Otsuji T, Abe M, Kinoshita H. After-effects of using a weighted bat on subsequent swing velocity and batters' perceptions of swing velocity and heaviness. Perceptual and Motor Skills. 2002;94(1):119–126. PubMed · DOI
- Southard D, Groomer L. Warm-up with baseball bats of varying moments of inertia: effect on bat velocity and swing pattern. Research Quarterly for Exercise and Sport. 2003;74(3):270–276. PubMed · DOI
- Montoya BS, Brown LE, Coburn JW, Zinder SM. Effect of warm-up with different weighted bats on normal baseball bat velocity. Journal of Strength and Conditioning Research. 2009;23(5):1566–1569. PubMed · DOI
How It Works
Your equipment. Adjustable weight.
- Attach. Attach Krazy Weights to the knob of your bat or the grip of your club.
- Adjust. Add or remove weight discs to change the amount of added weight.
- Train. Use your own equipment for swing training in baseball, softball, or golf.
Products
Baseball. Softball. Golf.
We're developing adjustable training weights for bats and clubs, with other sports being explored.
Baseball & Softball
Adjustable training weights that attach to the knob of a bat, for swing training with the equipment players already own.
Golf
Adjustable training weights that attach at the grip of a golf club, bringing the same training concept to a different sport.
Lacrosse · Hockey · Tennis
We're exploring how the Krazy Weights concept could extend to other sports.
Where We Are
From concept to production.
Design and engineering complete. Field testing underway.
Concept developed
The Krazy Weights training concept established.
CompleteEngineered
Designs and functional prototypes developed for bats and clubs.
CompleteField testing
Evaluating prototypes in real training settings and gathering feedback.
In progressProduction tooling
Preparing the tooling needed for manufacturing after field testing.
PlannedRetail launch
Launch timing will be announced as development progresses.
To comeAbout
Based in New Hampshire.
Krazy Weights started with a simple idea: put the training weight at the handle instead of the barrel, so an athlete can build swing speed with the bat or club already in their hands.
We're a small, independent company, and the design and prototyping work happens here. Right now we're in field testing: getting prototypes in front of players and coaches, and refining the design around what comes back.
How You Can Help
What we're looking for.
If you know the right person, these are the introductions that move this forward fastest.
Coaches & training facilities
Hitting academies, instructors, and travel programs willing to put prototypes in athletes' hands and tell us honestly what works and what doesn't.
Retail & distribution
Buyers, pro shops, and reps who know where a product like this belongs on a shelf, and what it takes to earn that spot.
Investors
Early-stage backers who understand physical product and want to be involved before tooling is complete and the first production run ships.
Contact
Let's talk.
Coaching, retail, investment, or an introduction to someone who should see this. Send a note and you'll hear back from us directly.