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The Sufferfest: Hell Hath No Fury - Neil Browne
The creator of the Sufferfest training videos has once again designed a devilish workout. The newest edition to the Sufferfest library is Hell Hath No Fury (HHNF). This video’s focus is two, 20 minute efforts ridden at a perceived effort of 7 to 8 out of 10, which translates to threshold intervals. The bread to …