2006-2012 Honda TRX90 TRX90EX/X Service Manual, Page 221Get this manual
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REAR WHEELBRAKElSUSPENSION
Unit: mm (in) SERVICE UM!!:]
20 kPa (0.20 0.03 kgfcm"2.9 0.4 psi) 2030 (13161-316)
Slack I-Sizelink Drum 1.0 Rear (parking) brake lever free