FULL SYS­TEM GAINS

Performance Bikes (UK) - - The Mod Squad -

Fit­ting a full Akrapovic sys­tem im­proves the weak­est stan­dard R1 mo­tor across the board, to the point where it is mak­ing enough shove to keep it in con­tention on the road. Ditch­ing the EXUP valve does noth­ing to dent the 20v mo­tor’s low and midrange grunt – in fact, the 6lb.ft peak torque gain is mostly main­tained from 4000rpm to the red­line. The only is­sue is that the fit­ment is dis­con­tin­ued: keep an eye out for NOS or clean se­cond­hand sys­tems.

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