DRIVETRAIN·Drivetrain Kit

CYC Heavy-Duty 5-Speed Drivetrain Kit (Cassette, Hub, Shifter, Derailleur, Chain) - 148mm

●AftermarketOEM# 3100-HDD148-01

$448.99

$12 flat shipping

ByBonnell

Returns within 30 days. Customer-initiated returns have a 10% restocking fee. See Returns policy.

Wired Whips LLC, 1438 S Sage Bloom Way, Saratoga Springs, UT 84045

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→Converts the single-speed Bonnell 775 MX to a 5-speed rear drivetrain. CYC lists it for the X1 Pro 4 (the 775 MX motor). The kit hub is 32-hole, while the stock 775 MX rear hub is a 36-hole Bonnell single-speed sprag hub, so a new rear wheel build (32H rim, spokes) is required and not included. The derailleur mounts on the frame's UDH hanger. The KMC e9 chain included replaces the stock KMC e1 rear chain; the 219H motor chain is unchanged. Order the 148mm version (775 MX rear axle is 12x148 Boost). Professional installation recommended.
→Aftermarket upgrade — improved performance over stock
→Verified fitment for 1 bike model

About the Drivetrain Kit

CYC Heavy-Duty 5-speed drivetrain kit: 15-30T chromoly/7075 cassette, AlexRims 32H 12x148 Boost hub, Microshift Advent shifter and clutch derailleur, and KMC e9 Turbo EPT chain. Turns the single-speed Bonnell 775 MX into a 5-speed; needs a new 32H rear wheel build (not included).

Fits: 775 MX