Reply To: Scrambler Gearing. Great British Handcrafted Motorcycles › Forums › Spitfire – Scrambler › Scrambler Gearing. › Reply To: Scrambler Gearing. 14 September 2022 at 22:13 #12961 SeagullMember Re gearing you may be able to change the front from presumably 15 (mine is 15/43 soon to be 15/40) to 16.