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Arrow spine for a 35 lb compound at a 27 inch arrow with a 100 grain point: a 600 spine (band 500-600), plus the 175 grain minimum weight. Sourced.

Updated 05 September 2026.

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What arrow spine for 35 lb draw at a 27 inch arrow

The starting spine for a 35 lb draw at a 27 inch arrow with a 100 grain point, and the weight floor.

For a 35 lb draw at a 27 inch arrow with a 100 grain point, start with a 600 spine (the 500-600 band), and keep the finished arrow at or above 175 grains total.
This setupmanufacturer data, cited
Draw weight35 lb
Arrow length27 in (cut, nock groove to shaft end)
Point weight100 gr
Recommended spine600 (published band 500-600)
Minimum total weight175 gr, from the 5-grains-per-pound floor
A shaft in this spine

Field notes

A 35 lb youth or light-recurve draw at a 27 inch arrow flexes the shaft very little, so it takes a weak 600 spine. Fitting a stiffer shaft here would leave the arrow flying poorly off the shelf.

Spine is a starting point, not a guarantee, because a 340 from one brand can differ from another. Confirm on your arrow maker's chart at 27 inches and 35 pounds, or bare-shaft test before cutting a dozen.

Whatever spine you land on, keep the finished arrow at or above 175 grains total, the 5-grains-per-pound floor, so the bow is not shooting dangerously light.

The rules behind this pick

Questions and answers

What arrow spine for 35 lb draw at a 27 inch arrow?

For a 35 lb draw at a 27 inch arrow with a 100 grain point, start with a 600 spine (the 500-600 band), and keep the finished arrow at or above 175 grains total.