This is O.S. Engine R21GT II Onroad Engine w/ TB01 EFRA2042 & MB01-70 Combo Set. While inheriting the smooth feel and good fuel efficiency of the previous model OSSPEED R21GT, which was well received in the European market, the home of GT cars, the power feeling in the mid-low speed range has been improved by reviewing the counterbalance of the crankshaft. Did. In addition, the newly designed inner head improves idling performance, and an O-ring is used to reduce vibration and improve dust resistance. The outer head has been made lighter, and has evolved into the OSSPEED R21GTII, which is particular about everywhere. We also have a combo set with TB01 (EFRA2042) tuned silencer and MB01-70 manifold exhaust system.
For: Nitro RC
Color: Silver/ Black
The crankshaft uses two tungsten counterweights. We have optimized the mass balance by reviewing the detailed dimensions.
The inner head is newly designed. Improved low and medium speed feeling and idling performance. An O-ring is also used to reduce vibration and improve dust resistance.
The outer head is also newly designed. Succeeded in weight reduction compared to conventional products. The outer circumference is processed to create a lacy atmosphere.
Equipped with 5 scavenging ports and 3 exhaust ports to meet IFMAR regulations.
Equipped with a double-adjust type 22E(B) GT cab. The reducer is a newly designed 7.0MM(RED) AL2.
Stroke Volume: 3.49 cc / 0.213cu.in.
Bore: 16.08mm / 0.633in.
Stroke: 17.20mm / 0.677in.
Output: 2.65ps / 2.61hp / 34,000rpm
Practical RPM: 4,000-42,000 rpm
Weight: 362g / 12.77oz.
O.S. Engine R21GT II Onroad Engine w/ TB01 EFRA2042 & MB01-70 Combo (1 set)