I recently purchased the Vee Rubber tires from Sears (yes they are still in business) for an excellent price (see below).

Just an FYI (these are also the latest serial numbers)

Vee Rubber VTR-350 Arachnid Front 165/55R15 Can Am Spyder Motorcycle Tire - V35003
Size: 26.0 x 12.0 x 26.0

Condition: New
Sold by Motorcycle/ATV Maniac
Marketplace
Mfr# V35003
Part# SPM13587250419
PRICE QTY ITEM SUBTOTAL
69.05 2 138.10
ITEM DETAILS
Vee Rubber VTR-350 Arachnid Touring Rear 225/50R15 Can Am Spyder Motorcycle Tire - V35004
Size: 26.0 x 12.0 x 26.0

Condition: New
Sold by Motorcycle/ATV Maniac
Marketplace
Mfr# V35004
Part# SPM13587250519
PRICE QTY ITEM SUBTOTAL
111.40 1 111.40