Choosing the Superlight as the frame material reduces the weight by approximately 750g compared to choosing Steel as the frame option.
The Superlight option comprises these lighter-weight specifications, not otherwise on our bikes:
Titanium alloy front fork, rear fork, lightweight front wheel, headset and handlebar grips. Superlight bikes with mudguards have titanium alloy mudguard stays..
The Superlight option replaces the steel alloy used in the front fork and in the rear frame with titanium alloy.
Titanium is lighter and slightly more flexible. The weight saving is particularly appealing if you expect to carry the bike regularly and the slight flex in the frame makes the titanium frame more comfortable over longer journeys.
Select Superlight from the menu of specifications, at Stage 1 of building your bike, here