(ILF) - International fitting Limbs - As a guide, most ILF fitting limbs are measured @ 28" amo, 26. 1/4" to the throat of the bow grip (pivot point) and used on a 25" handle. The poundage marked on the limbs is usually the lowest. Shifting the same limbs to a 23" riser will result in a weight increase of approximately two pounds. Another feature of most ILF fitting handles is adjustable tiller bolts, the position of these will also effect the draw weight of your limbs. Please Note: although limbs may fit a wide range of handles when mixing manufacturers slight differences may affect fit and draw weights.