Reynolds 631 Custom Tubeset

The spiritual sucessor to Reynolds' legendary 531-series, 631 is made from German-sourced, high-manganese alloy steel. Unlike 853, 631 is not heat-treated, resulting in tubes that are easier to work with, but with less dent-resistance.

Select your desired tubes to see total tubeset price. (12% discount will be applied when you add the tubeset to your cart.)

Note: 631 tubesets are supplied with 525-series seatstays. 525 is a non-heat-treated chromoly alloy, which pairs nicely with 631. Head tubes and BB shells for 631 tubesets are available in 525 or 631 series, depending on size, and are noted in the dropdowns below.