Surly make frames out of steel. 100% 4130 Cromoly steel to be precise. Surly don’t do fashion, they just do good, honest, bombproof stuff. They produce bikes for those who can appreciate longevity and have been selling bikes adorned with a ‘Fatties Fit Fine’ sticker for years.The range of cross and adventure bikes come with a strong reputation and following. We offer interest free credit on Surly bikes.