The Polygon Siskiu T7 and the Vitus Mythique are two popular full suspension mountain bikes that offer great value and performance for riders who want to tackle a variety of trails. Both bikes have similar features, such as 140mm of rear travel, dropper posts, 1×12 drivetrains, and hydraulic disc brakes.
However, there are also some key differences that may influence your decision depending on your preferences and riding style.
Geometry
The geometry of a bike affects how it handles, feels, and fits on the trail. Both the Polygon Siskiu T7 and the Vitus Mythique have modern geometry that is designed to be stable, agile, and comfortable. However, there are some subtle differences that may make one bike more appealing than the other for certain riders.
Polygon Siskiu T7
The Polygon Siskiu T7 has a slightly longer reach (475mm vs 470mm in size large), a slightly steeper head angle (65.5 degrees vs 66 degrees), and shorter chainstay (435mm vs 440mm) than the Vitus Mythique.
These differences mean that the Polygon Siskiu T7 may feel more responsive, nimble, and playful on tight and twisty trails, while also being more efficient on climbs and flats.
Vitus Mythique
The Vitus Mythique has a slightly shorter reach (470mm vs 475mm in size large), a slacker head angle (66 degrees vs 65.5 degrees), and longer chainstay (440mm vs 435mm) than the Polygon Siskiu T7.
The Vitus Mythique feel more stable, confident, and composed on steep and rough terrain, while also being more forgiving and comfortable on long rides.
Wheelbase
Both bikes have similar wheelbases (1208mm vs 1209mm in size large), seat tube angles (76 degrees), and standover heights (760mm vs 762mm in size large), they fit similarly and offer good pedaling efficiency and clearance.
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Suspension
The suspension of a bike affects how it absorbs bumps, maintains traction, and supports the rider on the trail. Both the Polygon Siskiu T7 and the Vitus Mythique have similar suspension designs that use a single-pivot linkage system with a rocker arm to activate the rear shock.
However, there are some differences in the suspension components and settings that may affect the performance and feel of the bikes.
Polygon Siskiu T7
The Polygon Siskiu T7 has a RockShox Recon RL fork with 150mm of travel and a RockShox Deluxe Select Plus rear shock with 140mm of travel.
The fork has an air spring, a rebound adjustment, and a lockout lever, while the rear shock has an air spring, a rebound adjustment, and a three-position compression lever.
The suspension settings are tuned for medium compression and rebound damping, which means that they should offer good support, control, and versatility for most riders.
Vitus Mythique
The Vitus Mythique has a Marzocchi Bomber Z2 fork with 140mm of travel and an X-Fusion O2 Pro R rear shock with 140mm of travel.
The fork has an air spring, a rebound adjustment, and a sweep adjustment that controls the low-speed compression damping. The rear shock has an air spring and a rebound adjustment.
The suspension settings are tuned for low compression and rebound damping, which means that they should offer more plushness, sensitivity, and traction for rougher trails.
Leverage and Anti-Squat Values
Both bikes have similar leverage ratios (2.6:1 vs 2.5:1) and anti-squat values (100% vs 98% at sag), which means that they should have similar pedaling efficiency and bob resistance.
However, the Polygon Siskiu T7 has more progressive suspension kinematics than the Vitus Mythique (18% vs 13% progression), it have more bottom-out resistance and pop than the Vitus Mythique.
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Components
The components of a bike affect how it performs, feels, and lasts on the trail. Both the Polygon Siskiu T7 and the Vitus Mythique have similar components that are reliable, durable, and functional for most riders.
Yet, there are some differences in quality, compatibility, and preference that may make one bike more attractive than the other for certain riders.
Polygon Siskiu T7
The Polygon Siskiu T7 has a Shimano Deore M6100 drivetrain with a 10-51T cassette and a Shimano MT201 hydraulic disc brake system with 180mm rotors front and rear.
The drivetrain offers smooth and precise shifting, a wide range of gears, and easy maintenance, while the brakes offer good modulation and power for most situations.
The Polygon Siskiu T7 also has a TranzX dropper post with 150mm of travel and a remote lever, Entity XL2 wheels with Schwalbe Nobby Nic tires, and Entity Xpert handlebar and stem.
Vitus Mythique
The Vitus Mythique has a SRAM SX Eagle drivetrain with a 11-50T cassette and a Tektro HD-M290 hydraulic disc brake system with 180mm rotors front and rear.
The drivetrain offers similar performance, range, and ease of use as the Shimano Deore, but may be less durable and more prone to chain drops. The brakes offer decent modulation and power, but may require more frequent bleeding and pad replacement.
The Vitus Mythique has a Brand-X Ascend dropper post with 150mm of travel and a remote lever, WTB ST i30 wheels with Schwalbe Magic Mary and Hans Dampf tires, and Nukeproof Neutron handlebar and stem.
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Weight, Size and Color
Both bikes have similar weights (14.6kg vs 14.8kg in size large), sizes (S to XL), and (black/blue vs black/green).
Still, the Polygon Siskiu T7 has a Boost 148mm rear hub spacing, while the Vitus Mythique has a non-Boost 141mm rear hub spacing, which may affect the compatibility and stiffness of the wheels.
Conclusion
The Polygon Siskiu T7 and the Vitus Mythique are both great full suspension mountain bikes that offer a lot of bang for your buck. They are both suitable for riders who want to explore different types of trails and have fun on their bikes. However, they also have some differences that may make one bike more appealing than the other for certain riders.
