Cat 4

Sydenham Road from Dundas

Ontario, canada

At just 1.7km, Sydenham Road from Dundas is short but deceptively intense — 114m of elevation packed into a brief, breathless effort. The gradient averages 6.7% — steady enough to find a rhythm, steep enough to feel it. It's over before the legs know what happened — a short, explosive effort where momentum is everything. Located in Ontario, Canada.

  • A false flat around km 1 offers brief respite before the road kicks up again.

Sydenham Road from Dundas

Ontario, canada

1.7km 114m 6.7%
4

Distance

1.7km

Avg Gradient

6.7%

Max Gradient

10%

Elevation Gain

114m

Summit

216m

Wall Rating

3.2

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4