![FMF Factory 4.1 Mini Slip-On SS w/ Aluminum Muffler - All KLX140 Z50/ XR50/ CRF50 [1988+] Carb & Fuel 2019+ CRF110 using 24-34mm TB*](https://cdn.shopify.com/s/files/1/1205/7200/files/08-21-klx-140-aluminium-fait-41-fmf-042382-silencieux.jpg?v=1716260649)
![FMF Factory 4.1 Mini Slip-On SS w/ Aluminum Muffler - All KLX140 Z50/ XR50/ CRF50 [1988+] Carb & Fuel 2019+ CRF110 using 24-34mm TB*](https://cdn.shopify.com/s/files/1/1205/7200/files/download.jpg?v=1716260649)
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2019+ CRF110 using 24-34mm TB*
we offer an upgrade which allows use of inner rotor kits and larger displacement engines with this clutch kit - Please see the Billet Housing upgrade available in this section for more details
: 20 oz (0
Includes hardware as shown in the picture
By adopting the roller rocker arm
FMF Factory 4.1 Mini Slip-On SS w/ Aluminum Muffler - All KLX140 Z50/ XR50/ CRF50 [1988+] Carb & Fuel 2019+ CRF110 using 24-34mm TB*The Factory 4. 1 RCT incorporates the latest in FMF Resonance Chamber Technology both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering moving the muffler closer to the motor to centralize mass. The Factory 4. 1 RCT is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at
![Mega Kangaskhan ex (025) [Mega Evolution Promo]](https://zulusgames.com/cdn/shop/files/668509_800x.jpg?v=1775179692)
