SIS 4.3 Double-day

Entry for SIS Stage 4.3 (Saturay 4.18) where you'll contribute 10 surgical masks and be able to compete against fellow competition in Boulder.

Route: Doubles!

4.3s1 & 4.3s2 offer the most powerful riders a chance to shine. Neuromuscular and Anaerobic skill will see the top of the podium - watch out for crit-lifers today!

4.3s1 is a 500m effort for you to test your neuromuscular sub 1' abilities and see how you stack up against your friends.

4.3s2 is a 2,000m effort to test your anaerobic sub 3' power