Grindstone
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The Grindstone is a precision-engineered edge training platform designed to meet the demands of climbers across the performance spectrum.
It features a comprehensive progression of edge depths paired with Tension's signature edge radius profile that maximizes comfort while training.
Ideal for structured finger strength protocols, the Grindstone has become a foundational tool for serious climbers worldwide.
Key Features:
- Full Width "Bar-style" Top Jug
- 50mm center one-arm edge
- 30mm edges
- 25mm edges
- 20mm edges
- 15mm edges
- 10mm edges
- 8mm edges
- Top phone slot for timer
Customer Reviews
I'll start by saying that I love the shape and design of the Grindstone. Unfortunately, the board I received is really ugly. 80% of the hangboard is a sickly green color. The other 20% (unfortunately mostly on the back of the board) is colored more like normal wood. It looks like it's made of pressure-treated lumber, but I'm sure it's just poplar that picked up minerals and turned green. The board doesn't resemble any other Grindstone I've seen online or in person. I'm not sure what to do, either stain it so that it doesn't look like my hangboard has an upset stomach, or possibly try to bleach the greenish hue out by leaving it in the sun for a week(?).
Also, the quality of the CNC routing on the edges of the hangboard isn't what I expected. There's quite a few burrs, small splinters, and rough transitions at the outer margins of the edges. I don't know, given the steep price I was expecting a nice hangboard out of the box, not a crafts project.
I love using the grindstone for my warm-up!
My favorite hangboard, every edge thats needed at a good spread for the shoulders. Easy installation
