CNC machined from 7075-T6 billet aluminum, our door strengthens this critical area and provides rigid support for the transmission shafts. Includes grade 8 mounting hardware, shift drum bushing, main and countershaft ball bearings and circlips installed for your convenience. Made in USA.

Weight 1 lbs
Brand

Country of Origin

Engine Type

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Transmission Type

Customers' review

Rated 5.00 out of 5 stars
1 review
5 stars 1 100 %
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1 review for Zipper’s Billet Door for 5 Speed Sportsters®

  1. 5 out of 5

    Billet trapdoor I put one of these trapdoor plates on my 1991 Sportster with gear set from a 1999 Buell M2. Works great to stop missing a gear when running my bike hard. 18000 miles on transmission. Crashed it last July when a pickup truck did a left turn in front of me! Bike exploded on impact and burnt to a crisp and broke my bike in half! Today I am up and barely walking again. Lucky I had my helmet on!

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