Carbon triathlon bike Trek Speed Concept SLR 9: Dura-Ace Di2, Aeolus RSL 51 wheels, frame only 1,522 g

Trek Speed Concept SLR 9: Dura-Ace for chasing the podium

The Trek Speed Concept SLR 9 pairs an OCLV Series 800 carbon frame with KVF tubes with a Shimano Dura-Ace Di2 2x12 groupset and Aeolus RSL 51 carbon wheels. Trek France does not publish its complete weight; the frame weighs 1,522 g painted and the fork 410 g. The Party Purple colourway plays on an intense purple punctuated with black.

Technical specifications

Who is it for?

For the age-group triathlete aiming for a podium or a championship qualification, for whom every detail counts. It is aimed at an athlete already used to the aero position, who rides a lot and wants the best Trek makes with Shimano.

The LVR workshop view

OCLV carbon, Trek's signature. The acronym refers to compacting the fibres at high temperature and under strong pressure, a process Trek has used since 1992 to eliminate internal voids. The number that goes with it measures how optimised the layup is. The Speed Concept SLR 9 stays with OCLV 800, like the whole family: Trek did not see the point of using the Madone's OCLV 900, because a time trial bike is judged first and foremost on its drag. The frame is covered by Trek's lifetime warranty.

The key point: switching to OCLV 900 would save a few grams that nobody would feel in a stretched-out position on the flat. Trek's choice focuses the SLR 9's budget on the Dura-Ace Di2 drivetrain and the RSL wheels, where the difference can be felt.

Dura-Ace Di2 R9250 stands out from Ultegra with lighter parts and a superior finish, with the same operation: fast, precise shifts with no cable adjustment. The Aeolus RSL 51 wheels are Bontrager's top tier, with slimmer hubs and a more refined rim.

Like the SLR 7, this SLR 9 has no power meter as standard: it is up to you to choose power-measuring pedals or a chainset if you want one, and we can fit it. On the other hand, the Bento box and down tube storage come as standard.

Which Speed Concept should you choose?

Our take: compared with the SLR 7, the SLR 9 brings Dura-Ace Di2 and RSL wheels, but no power meter; the SLR 9 AXS adds one as standard with RED AXS E1. Trek does not publish a complete weight for either version.

Your questions

Why buy from LVR Cycles? Our Béziers workshop prepares your Speed Concept SLR 9 for racing: bike fit, fine-tuning of the Dura-Ace Di2 and fitting a power meter if you wish.

Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.