This is what the Sturmey Archer Kickback gear ratios are
Gear Ratio
• Overall Range - 138%
• Gear 1 - 100% (Direct Drive)
• Gear 2 - 138% (Gear 1 + 38%)
I’ve read it comes with a 22 tooth cog . My Electra has a 44 tooth chain ring and the rear cog is 22 tooth now . So it looks like no change in low gear , but an increase in speed in second if my understanding is correct .
Might consider changing the chainring out for a 38 or a 40 tooth .