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Information on materials used in our frames

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More detailed specifications of the tubes can be found by clicking on the images below.

Link to Reynolds Web site 631 page spacer spacer Link to Reynolds Web site 725 page spacer spacer Link to Reynolds Web site 853 page

Reynolds 631
Utilising the same chemistry as 853, this product is cold-worked and also has the advantages of air-hardening after welding.
The alloy is a development on our famous 531 range with 10% higher strength.
For cycling use, this provides tough, durable and comfortable frames particularly suitable for long distance riding.

Strength rating; 800 - 900 MPA  density 7.78 GM/CC.

Reynolds 725
Using an industry standard alloy with mechanical properties similar to our famous 753 brand,
Reynolds mandrel butt and heat-treat this alloy so that thinner walls can be used compared to non-heat-treated steels.
725 can be used within our “Designer Select” combinations including 853 and 631 tubes.

Strength rating; 1080 - 1280 MPA density 7.78 GM/CC

Reynolds 853
The benefits of air-hardening steels are particularly noticeable in the weld area where, unlike conventional steel alloys,
strength can actually increase after cooling in air immediately after welding.
853 is heat-treated to give high strength and damage resistance, and the steel properties allow thin walls to be used,
so that lower weight but fatigue-resistant structures can be made.

Strength rating; 1250 - 1400MPA density 7.78 GM/CC

We can also make your frame using Columbus tube
please check with us what is currently available prior to ordering

Link to Reynolds web site home pagespacerLink to columbus web site home page

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