Complementing this, investigations into dynamic testing methods have applied impact excitation and modal analysis to identify discontinuities in the resin grout surrounding rock bolts, with ...

We've been on the Shimano XTR Di2 for months, and have a full review ready to go. Spoiler alert: it's really good.

“We had a mining company go through. They would scale the rock down and then install rock bolt anchors to secure the rock above in the ceiling and on the sides,” Field said. “There was ...

Wireless XTR is here. Finally. Shimano's M9200 XTR Di2 wireless group is a worthy challenger to SRAM's AXS T-Type.