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Let us take some of the stress out of holiday gift buying this season by giving you more time to qualify for price adjustments. Price adjustments on purchases are available 10/8/2022 until 12/25/22. If an item you buy has a price reduction before Christmas, we will credit the difference upon request, so you can shop confidently knowing your price is guaranteed.
All credits will be issued as Loyalty Club Points on your Tower Hobbies account.
The O.S. SPEED R2104 is a factory tuned engine solely developed for 1/8 racing competition. This new engine boasts 9-port piston liner to improve torque in low-middle power range. It also produces enough power as designed even for high traction tracks. The redesigned crankshaft counter weight enables smooth power transition from low to top. Distance of each fin of the heat sink head is enhanced for better air flow for cooling and better balance. The heat sink head is anodized in both black and red for a high contrast and powerful aesthetic.
This new engine boasts a 9-port piston liner to improve torque in low-middle power range. It produces enough power as designed even for high traction tracks.
Distance between the cooling fins is enhanced for better air flow and better balance. The heat sink head is anodized in two colors: black and red.
A silicon O-ring fit to the inner head prevents dust from coming into the engine.
The redesigned crankshaft counter weight enables smooth power transition from low to top.
The carburetor is 21M2(B), which has been proved to be consistent and reliable for generations (R2101, 2102, 2103)
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Points displayed here does not include Bonus Points for select product. If the product is marked with the Bonus Points badge you will also earn the extra "Bonus Points" points listed in this banner in addition to the calculated points displayed
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