Hours Boulder Store: 10-6 M-F, 10-5 Sat, 12-4 Sun
Portland Store:   10-5 Mon/Fri, 10-6 Tues-Thurs, 10-4 Sat
Boulder Headquarters: 720.227.9400 local  877.BNS.SKIS (267.7547) toll free
1717 15th St ; Boulder, CO 80302 (map)
BNS East: 207.541.7438 • 200 Anderson, Suite 5 • Portland, ME 04101 (map)

 
Tuesday, March 09, 2010
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Ski Service * Stone Grinding

DUE TO THE OLYMPICS, THERE WILL BE NO STONE GRINDING FEB 14-28.
DEADLINE FOR SKIS ARRIVING IN SHOP IS FEB 8.  Click here for details.

Check out our new 09-10 Stone Grinding Menus!

Download a Grinding Work Order Form (PDF)
Download our Simple Stone Grinding Menu (PDF)
Download our Complete Stone Grinding Menu (PDF)
Download a TEAM Work Order Form (Excel)

 Stone Grinding Services  

Stone grinding flattens the ski base, removes burnt and damaged base material and provides important micro-structure.  Bottom line, it makes your skis faster and easier to wax.  We have tried to simplify a complicated process as much as possible, but if your eyes glaze over with the information below, give us a call and we can help you choose what will be best based on your skis and the conditions they see most often.

We have Tazzari RP-13 & RP-23 cross-country specific machines that leave bases clean and hair-free, reducing post-grind base prep and giving you fast skis almost immediately.  These machines are numerically controlled, which means that the diamond cutting system and grinding wheel are digitally controlled and can give us highly precise, repeatable grinds.  Most stone grinding machines are made for alpine equipment and can not do the fine work required on cross country skis, which have softer bases and smaller surface area.  Our machine avoids the burning, smearing and overly-aggressive structure we see in a lot of skis that are brought to us from other grinders.

Click on the thumbnail images for full-size images of the skate and classical graphic grind menus.
download the full grind menu by clicking here

Skate Structure MatrixSkate Structures - Performance demands on skate skis are extremely high, as the skis must run very fast, but also release the snow easily while in motion. Too much structure will cause a distinctive “bite” in the performance feel of the ski, and climbing speed can be compromised. In general the more advanced layered structures - designed to combine optimal moisture and crystal management with a very light feel - offer the best advantage on skate skis.

  

 

Classic Structure MatrixClassic Structures - Classic skis generally glide in a track (where there is a lot of traffic, and usually a higher degree of glazing for a given crystal type and moisture content) and are not required to release the snow in motion. For these reasons classic skis can handle heavier structure, and the patterns don’t require the same level of refinement. The primary concern on classic skis is to make the range of the structures as wide as possible, in order to put the ski with the optimal wax pocket into the race whenever it’s required.

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 Stone Grinding Schedule  

2/1/2010 - DUE TO THE OLYMPICS, THERE WILL BE NO STONE GRINDING FEB 14-28.

DEADLINE FOR SKIS ARRIVING IN SHOP IS FEB 8.  Click here for details.

Zach, Nathan and Amy will be heading to the Olympics to work as Techs for the US Ski Team and Holmenkol and therefore we will not be able to be grinding skis during that time.  Both stores will be open for business during that time, we just won't be grinding skis.

Click image for full-size version

Grind Schedule October-March:

The cutoff for our batches is Thursday by 5PM with a target of completion by the following Wednesday at 3PM, including hot boxing.  Please be aware that the grinding process is often finicky and if we run into trouble, the target completion is just that - a target that may have to be moved in order to provide the best quality.  We would rather get you a great grind than buzz the skis out the door and make a deadline.  But we will make every effort to keep to this schedule.

Please do what you can to help us do a better job for you.  Please send in clean skis and include complete work order forms so we don't have to track you down to get information.  Also to ensure that you are not in a hurry - send in your skis over the summer or well before you need them.  The best work comes off the machine when we have time to cut the stone perfectly and dial in the structure just right.

Hot Box: Get skis in before 4PM Monday or Wednesday, receive your skis by 3PM Tuesday or Thursday.
Grind Batch Cutoff: Thursday 5PM

Chris among the skis

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