Specifications:

eeSilk+ Elatomer - Extra Soft #1 - BAE0321
eeSilk+ Elatomer - Soft #3 - BAE0322
eeSilk+ Elatomer - Medium #5 - BAE0323
eeSilk+ Elatomer - Firm #7 - BAE0324
eeSilk+ Elatomer - Extra Firm #9 - BE0325

Rider Weight:

<110lb (<50kg) = #1 Elastomer (Extra Soft)
100-160lb (45-73kg) = #3 Elastomer (Soft)
150-210lb (68-95kg) = #5 Elastomer (Medium)
200-250lb (90-113kg) = #7 Elastomer (Firm)
200-250lb (90-113kg) = #9 Elastomer (Extra Firm)