The N1 Shift Drums have a 0-down all-up shifting pattern and eliminate any possibility of catching neutral on aggressive 1-2 shifts. Neutral is below 1st. The N1 drum is also popular with hand shifting bikes where finding neutral without doubt or error is critical to safety or riding/looking smooth.

6-Speed Cruise Drive Replacement N1 Shift Systems:

We took the same design principles that made our Six-Speed Overdrive one of the smoothest-shifting transmissions on the market and applied them to the BAKER N1 Shift Kit. This kit transforms any Cruise Drive 6-speed into a precision-shifting, neutral-down machine, giving you the confidence and control you need in every riding scenario.

Features

For all riders – The N1 Shift Pattern isn’t just for aggressive riders or stunt riders—it’s for all riders who want more control and confidence in their shifting. Whether you’re navigating traffic, staging at the drag strip, or carving through mountain roads, the N1 pattern helps eliminate accidental shifts into neutral. And when you do want neutral, the redundant neutral feature and refined ratchet pawl geometry make it easy to find—quickly, accurately, and consistently.
Smoother, more positive shifting - Smoother, positive shifting is achieved by incorporating advanced geometry in the fork pin groves, and the integration of a linear detent bearing on the right side mounting plate.
Reduced shift effort -Thanks to a fixed spindle drum design and reduced rotational friction, shifts are smoother and require less effort. That means better performance, especially under hard riding conditions.
Less shift clunk - Each design improvement combines in a precise mechanical choreography that is inherently silent.
Easy Installation – There is no need to disassemble the stock gearset from the bearing door. Just pull out the stock gearset, and swap out the stock shift drum for the BAKER N1 Shift Kit Drum. No adjustments are needed for the shift drum, direct bolt in design. Re-uses stock shifter pawl, stock pawl centering pin, shift forks and fork rods.
High Durability - Precision-machined spindle and drum for the most durable shift drum on the market.

Fitment

Fits 2007-2018 Touring Applications, 2007-2017 Softail Applications, and 2006-Later Dyna (PN CD6N1-602)
Fits 2017-Later M8 Applications (PN CD6N1-602-M8)

CD6N1-602	Cruise Drive N1 Shift Kit, 2006-Up Dyna, 2007-Up, Twin Cam
CD6N1-602-M8	Cruise Drive N1 Shift Kit, M8 (Except 2023-2025 CVO, 2024-2025 Street Glide, 2024-2025 Road Glide and 2025 Softail)

Cruise Drive Smooth Shift Kit Instructions

GrudgeBox N1 Shift Systems:

We took the same design principles that made our Six-Speed Overdrive one of the smoothest-shifting transmissions on the market and applied them to the BAKER N1 Shift Kit. This kit transforms any standard shift pattern GrudgeBox into a precision-shifting, neutral-down machine, giving you the confidence and control you need in every riding scenario.

Features

For all riders – The N1 Shift Pattern isn’t just for aggressive riders or stunt riders—it’s for all riders who want more control and confidence in their shifting. Whether you’re navigating traffic, staging at the drag strip, or carving through mountain roads, the N1 pattern helps eliminate accidental shifts into neutral. And when you do want neutral, the redundant neutral feature and refined ratchet pawl geometry make it easy to find—quickly, accurately, and consistently.
Smoother, more positive shifting - Smoother, positive shifting is achieved by incorporating advanced geometry in the fork pin groves, and the integration of a linear detent bearing on the right side mounting plate.
Reduced shift effort -Thanks to a fixed spindle drum design and reduced rotational friction, shifts are smoother and require less effort. That means better performance, especially under hard riding conditions.
Less shift clunk - Each design improvement combines in a precise mechanical choreography that is inherently silent.
High Durability - Precision-machined spindle and drum for the most durable shift drum on the market.

Fitment

Fits BAKER GrudgeBox

N170-GB6-A	N1 Shift Kit for BAKER GrudgeBox
N170-GB6-M8-A	N1 Shift Kit for BAKER GrudgeBox, M8 Models

5-Speed & BAKER 6-Speed Replacement N1 Shift Systems:

Part Number	Description	Fitment	Kit Comes With
N170-5-A	5-Speed N1 Shift Kit	1987-1997 FLT-FLH, Dyna, Softail	Drum, pillow blocks, top cover gasket, and fasteners
N171-5-A	5-Speed N1 Shift Kit	1998-2000 FLT-FLH & Dyna, 1998-1999 Softail	Drum, pillow blocks, top cover gasket, fasteners, and neutral switch
N172-5-A	5-Speed N1 Shift Kit	2001-2006 FLT-FLH, 2001-2005 Dyna, 2000-2006 Softail	Drum, pillow blocks, top cover/bearing door/side cover gaskets, fasteners, eccentric screw, nut, shifter pawl

N170-OD6-A	BAKER OD6 N1 Shift Kit	1987-2006 BAKER OD6	Drum, pillow blocks, top cover gasket, and fasteners
N170-DD6-A	BAKER DD6 N1 Shift Kit	1987-2006 BAKER DD6	Drum, pillow blocks, top cover gasket, and fasteners

We also offer standard shift pattern drum replacements. Please click here to check out the Smooth Shift Kit or give us a call at 518-339-3835 for any questions.

4-Speed N1 Shift Systems:

Eliminates the possibility of catching neutral on a 1-2 upshift. A quadriplegic could find neutral on a hand shift bike with the N1 shift pattern. We start with a solid chunk of steel, machine in all the features, then remove the unnecessary material. Two Teflon coated bushings are pressed into the drum axis bore for smooth rotation on shifts.

The N1 drum changes the shift pattern from the standard 1-N-2-3-4 to N-1-2-3-4.

Fitment

1952-79 ratchet tops with no modification (PN 4-155N1-A)

Detail

N1 Shift Drum install Instructions: Click Here

N1 Shift Kits

N1 Shift System

Cruise Drive Smooth Shift Kit