Hours Both Stores: 12-4 M-Th, and by appt.  Closed Fri-Sun.
We are often in the shop outside these times, but call first.
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)

 
Sunday, August 01, 2010
  |  Login
Ski Service * Stone Grinding
 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.

 Print     
 Stone Grinding Schedule  

5/11/2010 - We just published our new 2010-2011 Grind Menu.  We are into summer mode with roughly one batch per month through about September 1 when we will start cranking up production again.  Expect turnaround time to be (roughly) six weeks.  If you need your skis by a specific date, call us first. Get your ski orders into us ASAP so we can pick the skis for you specifically over the summer.

Send us your skis as early as possible so we can do fleet evaluations and get everything set up for our ski picking trips in early June.  Your skis will soak up wax all summer and be faster in the fall.

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

 Print