The idea Wilier Triestina’s engineers had in mind when developing the Series 9 was to offer an off-road bike for trail riding which would be fun, with good travel and a racing vibe. Not only did the 903TRB Mountain Bike (XT- 2018) have to be effective uphill, but it had to be even better coming down. Combining these two different requirements was not easy.
This led Wilier's engineers to choose the FSS (floating shock suspension), a patented VPP (virtual pivot point) based system. The first thing you notice when you look at a Series 9 MTB is that the shock absorber is not anchored directly onto the frame at a certain point, but floats between two links connecting the rear stays. This unusual design boosts pedal power (and therefore effectiveness when riding uphill) because it gives the bike a low bobbing level and a low pedal kick back. The perfect system for what we wanted to achieve! The utmost efficacy riding downhill and high pedal yield riding uphill, in or out of the saddle.
Each bike is fully built, tested and tuned by Wiggle's team of qualified bike mechanics to ensure you're bike arrives in perfect condition. To find out which size fits you click on the size guide tab above.
Note: Manufacturer may reserve the right to change the specification of that listed or shown on this page.Note: Manufacturer may reserve the right to change the specification of that listed or shown on this page.
The size chart below will get you on the right size bike. Experienced riders may also wish to refer to the geometry chart for more detail.
Getting the Right Fit
At Wiggle we measure each of our bikes to build accurate size charts for our customers. Our qualified team of mechanics then individually check each order, against measurements supplied by you, to ensure the size chosen is correct. Another reason you can have complete confidence when buying a bike from Wiggle!
If you are on the change over between sizes both options will fit. Racers and experienced riders would usually select a smaller size as this offers quicker handing. A larger bike offers more stability and is more suited to new and intermediate riders.
|Height||cm||163 - 170cm||170 - 175cm||175 - 180cm||180 - 190cm|
|ft||5′ 4″ - 5′ 7″||5′ 7″ - 5′ 9″||5′ 9″ - 5′ 11″||5′ 11″ - 6′ 3″|
|Inside Leg||cm||71 - 76cm||75 - 79cm||78 - 82cm||81 - 88cm|
|inches||28″ - 30″||30″ - 31″||31″ - 32″||32″ - 35″|
|H. Seat Tube - Center to Top||mm||380mm||420mm||460mm||500mm|
|L. Top Tube (Virtual)||mm||585mm||605mm||625mm||645mm|
|H1 Head Tube||mm||100mm||100mm||110mm||120mm|
|L1 Chainstay Length||mm||430mm||430mm||430mm||430mm|
|A. Seat Tube Angle||Degrees||74.5°||74.5°||74.5°||74.5°|
|A1 Head Tube Angle||Degrees||67.5°||67.5°||67.5°||67.5°|
We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.
Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items.