3.17/5.0 Low Noise Belt Drive Conversion Kit Transmission Gears System DIY Upgrade for RC Tamiya 1/10 TT02 Series TT02S TT02R<br> Fit for:<br> tt02<br> tt02S<br> tt02R<br> tt02D<br> tt02SR<br> tt02SRD<br> tt02RR<br> tt02SRX<br> Features:<br> Belt drive design, quiet running.<br> Smooth operation, stable excellent performance.<br> High-strength belt, not easy to damage, easier to adjust.<br> DIY for Tamiya TT02 transmission, 3.17/5.0mm motor gear.<br> Specification:<br> Material: metal, rubber<br> Color: blue&red<br> Belt: 57T<br> Spur Gear: 40T<br> Pinion: 16T<br> Weight: 20.5g/set<br> Installation:<br> 1. Use the metal disc of the stock gearbox to put it in;<br> 2. Both large and small friction plates are glued with double-sided tape;<br> 3. The groove on the pulley is pasted with a friction plate of corresponding size;<br> 4. Put the bearing in the middle;<br> 5. Install metal discs, non-slip springs, and nuts;<br> 6. Install the two gears closer to fit the belt, and then adjust the distance between the gears to tighten the belt