The move will see Kwik-Fit and AA Tyre Fit provide a three-year tyre management programme for the group with Kwik-Fit completing the majority for the tyre repair and replacement business.
Kwik-Fit will also complete all tyre authorisation through its tyre management programme.
Tim Bowden, director of supplier management at Bank of Scotland Vehicle Management, said: 'Whereas 10 years ago tyres accounted for some 20% of a fleet's maintenance budget this has now doubled to 40%.
'The increasing dominance of tyres on SMR costs has resulted in Bank of Scotland Vehicle Management adopting a more rigorous approach on this aspect of fleet costs. Hence the decision to rationalise activities to two tyre fast-fit suppliers.'