COLLOSUS NE

FAQ

• The bike comes with 29x2.6” tires front and rear. Can I fit 27.5” wheels to convert it to a ‘mullet’ set up?

  The frame has clearance for a 27.5x2.8" tire so a mullet (29” front, 27.5+ rear) is possible. However, the diameter of a 27.5x2.8" tire is significantly smaller than the standard 29x2.6" tire, hence changing to a mullet set up would reduce BB height and pedal to ground clearance while also slackening both the effective seat and head tube angles.

• Can I use a different rear shock?
• Can I change the fork?

  The fork will also fit a 27.5+ tire, however, this is highly discouraged as the BB drop would become dangerously low. We recommend staying ready for business with 29" all-round.

• Can Collosus N8e fit a chain guide?

  Most 205mm x 65mm Trunnion Mount shocks should fit. The leverage curve can work well with a coil shock. However, it’s worth noting that Polygon have Fox tune the stock rear shocks to work best with the specific bike model, so a standard tune replacement shock may not offer optimized performance.

• What size rotors can I use?

  You’ll need to use an e-MTB rated fork to ensure it is strong enough to withstand the additional forces and punishment that can be encountered by e-MTBs. The standard forks are 160mm travel, but you can run up to 170mm travel if you like. You cannot use a dual crown fork as the frame is not designed or tested to withstand the different loads.

• How can I maximize its pedal assist and the battery lifetime as well?

  For sure, the bike comes equipped with an e*thirteen E*Spec Plus top guide. The chain guide mounts directly to the drive unit and the bolt pattern is different to traditional ISCG/05, so most ‘normal’ chain guides are not compatible.

• How do I remove the battery?

  You can run up to 220mm rotors front and rear. While you can downsize from the standard 203mm to 180mm, we suggest not to.

• How do I install the battery?

  Shimano STEPS e-MTB drive systems provide 4 power modes; Eco, Trail, Boost and Walk-Assist; and its E-TUBE PROJECT app lets you customize the assistance of each mode to your personal preferences.

• How do I charge the battery?
• I like to ride in mud, are the electronics weather-proof?

  We recommend only shifting one gear at a time (up or down the cassette) and try to back off the power through the cranks a little as the integrated torque sensor will immediately react and also back off the motor’s power. Trail mode is much more intuitive with this than Boost mode. We recommend saving Boost mode for cranking straight-up big climbs where gear shifting is limited.

• How fast can I ride?

  Insert a 4mm Allen key into the hole above the battery cover on the underside of the downtube. Rotate it in the direction depicted by the arrow to release the battery lock. This will allow the battery to hang slightly down from the tube, creating access to the battery release lever at the top of the battery. Be sure to use two hands when releasing the battery as it’s quite heavy and shouldn’t be dropped.

• How far can I ride?

  Ensure the battery connections are clean and dry. Install the base of the battery into the lower mount closest to the motor, then press the top of the battery into the downtube until you hear and feel a “click”. Then your battery is installed.

• What is included in the standard warranty?

  The battery can be charged either installed in the bike, via the charging port on the left side in front of the motor, or detached from the bike using the additional connection port supplied with the charger.

• Do you have a spare battery? How much does it cost?

  Yes. The SHIMANO STEPS systems are waterproof for use under normal riding conditions, including heavy rain. Please do not use a high pressure washer to clean your bike.

• Can the Collosus N8E fit a larger battery?

  When gravity is on your side, there is no limiting your speed beyond that of a “normal” MTB with 160mm of awesome suspension. As far as motor assistance is concerned, the Shimano STEPS systems will provide motor assistance up to 20mph (32km/h) in the USA and Indonesia, or 25km/h in Europe and Australia.

• Can I run a headlight from the Shimano battery?

  The range of any e-MTB depends on many variables, including terrain, gradients, rider weight, assistance mode, rider input, ambient temperature, etc. While 100km adventures are definitely achievable aboard the Collosus N8e, we recommend using the range overview on the display for the best estimate. The range overview is recalculated continuously by calculating speed, rider behavior, and power consumption. This means that range overview makes a prediction, which can vary depending on these different factors.