See Codex: Space Marines for the following additional Fast Attack choice: Land Speeder Tornado — 65 pts each.
Errata — Chapter Approved: Codex: Space Wolves clarifications (v1.0): The Land Speeder Tornado should cost 75 points before weapon upgrades are selected — resolving the discrepancy with the 65-point cost printed in this Codex in favour of the cost given in Codex: Space Marines.