ERS Assembly Block ESR23 for ESR1, ESR15, ESR16 and Econo Inline.
Assembly blocks make it much easier to square up and hold together the rear end of chassis kits whilst soldering together.
The ESR23 is designed to fit the ESR1 kit with small and tall tyres.
Fits the new Stainless Steel ESR16 kits.
Also fits ESR6 Econo Inline kit -
Tip: leave a small 0.005" gap between the uprights and motor tab, for perfect soldering.