FREE SHIPPING on all U.S. orders of $19 or more!
The free shipping threshold for international orders is $50 or more.

All packages are insured and guaranteed for your safety and ease of mind.

Special Note: Our shopping cart, powered by Yahoo!, is not compatible with Google Chrome. If please use either Firefox or Microsoft Internet Explorer to place your order.

Spinervals Competition 27.0: Threshold Test & Suffer Fest

Spinervals Competition 27.0: Threshold Test & Suffer Fest
Item# spinervals-competition-270-threshold-test-amp-suffer-f270
Regular price: $29.95
Sale price: $26.95

Product Description

* Duration: 60 Minutes
* Intensity: 9.5 (on a rating of 1 to 10, 1 being easy and 10 being extremely advanced)
* Purpose: Determine your training zones, monitor your progress and increase your threshold


Spinervals 27.0 - Threshold Test & Suffer Fest serves dual purposes. A great threshold building workout designed to boost your anaerobic threshold and sustainable power output for time trialing events including triathlons, this workout also functions as a repeatable 'field test' used by many prominent coaches and exercise physiologists to determine an athletes 'Functional Threshold', or that output of work (power) one can sustain on average over a 20 minute period.

By learning one's functional threshold and retesting it every 6-8 weeks, an athlete can accurately determine the proper training zones as well as assess their training progress over time. This form of performance testing is critical for anyone interested in getting faster on the bike and achieving optimal results through a structured training program.

Released October 2008