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SO WHAT IS UNDERCUTTING?

Undercutting: Angular cutting of engagement dogs to keep from slipping out of gear.

Race Cut: Undercutting with slight ramps cut on face of engagement dogs to allow smoother transition
in gears with less kill time if using an air shifte
r. Good for street/strip use


 

SO WHAT IS SUPER FINISHING?
The REM'S ISF Process is an isotropic surface finishing process that produces a non-linear, low Ra finish that improves wear properties and reduces friction.

 

SO WHAT IS CRYO TREATING?
1.
Greater durability: Cryogenic treatment helps to promote the transformation of retained austenite present in heat-treated steels into harder martensite steel. This results in fewer imperfections and weaknesses in the steel's grain structure.

2. Improved wear resistance: Cryogenic hardening increases the precipitation of eta-carbides. These are fine carbides that act as binders to support the martensite matrix, helping to resist wear and corrosion resistance.

3. Stress relief: All metals have residual stress that is created when it solidifies from its liquid phase into a solid phase. These stresses can result in weak areas that are prone to failure. Cryogenic treatment can reduce these weaknesses by creating a more uniform grain structure.

 

  
The Perfect Honda CB750 SOHC Transmissions.
New proven undercutting procedures.


We have reduced the undercut angles to 2 degrees resulting in better shifting for street, road race and drag racing.
We also undercut both sides of the male/female dogs for acceleration and deceleration improvements.
Our new machining set-ups and procedures are quicker and extremely precise.

Our favorite transmission package: (above right)

Closer ratio transmission option. (perfect for road racing)
2 degree cuts on 2nd, 3rd and forth gears (both sides)
(6) transmission bearings.
Upgraded super finished shift drum. (super important)
(3) super finished shift forks. 

Note:
Most early, late and closer ratio transmissions will be in stock shortly.
Pricing Coming Soon.

 

 

VERSION # 1 ( Early Non-Undercut)


Version #1 is a perfect refurbished transmission without the expense of undercutting. This transmission has been carefully inspected, Glass beaded and reassembled replacing any questionable gears. New clips.

We call this version #1 early year fitment. See gear identification at bottom of page to identify early or late.
$ 199.00

Cryo treatment is an extra $129.00.
Super finishing is an extra. $349.00
(4) Transmission bearings are $52.00

SELECT ITEMS & OPTIONS


 


 

VERSION # 2 ( Late Non-Undercut)


Version #2 is the exact same as Version #1 but in later year gear ratios.
Note:
Early and late model transmissions can be interchangeable if you prefer later model ratios.
See gear identification at bottom of page for differences.
$ 199.00

Cryo treatment is an extra $129.00.
Super finishing is an extra $349.00
(4) Transmission bearings are $52.00

SELECT ITEMS & OPTIONS

 

VERSION # 3 ( Non-Undercut)




Close ratio Version #3
Includes:
Near perfect Non-undercut gears.
Closely inspected and glass beaded.
Reassembled with Honda OEM clips.

These transmissions are the favorite ratios for many racers and performance minded people world wide.

Ratios:
1st gear   2.5 ratio.
2nd gear   1.708 ratio.
3rd gear   1.333 ratio.
4th gear   1.096 ratio.
5th gear   .967 ratio.

Quote from a customer.
"After buying 3 different transmissions on E-bay and disappointed with all of them. I bought a Cycle X "close ratio" tranny.
 Couldn't be happier with the quality and ratios."
John from Canada.

$ 249.00

Cryo treatment is an extra 129.00.
Super finishing is an extra $349.00.
(4) transmission bearing are $52.00 (main and counter shaft)

SELECT ITEMS & OPTIONS


 

 

VERSION # 4 (Early Undercut )


Version #4 is an early style with 6 degree undercutting on 2nd, 3rd and forth gears.
This is one of our most popular transmissions.
$ 549.00

Additional 1st gear undercutting would be a 1 degree cut and would be an extra $149.00
Cryo treatment is an extra $129.00.
Super finishing is an extra $349.00.
(4) Transmission bearing are $52.00 

SELECT ITEMS & OPTIONS


 

 

VERSION # 5 ( Late Undercut )



Version #5 is the exact same as Version #4 but in a late style.
6 degree undercuts on 2nd, 3rd and forth gears.
$ 549.00

Additional 1st gear undercutting would be a 1 degree cut and would be an extra $149.00
Cryo treatment is an extra $129.00.
Super finishing is an extra $349.00.
(4) Transmission bearing are $52.00 

SELECT ITEMS & OPTIONS

 

VERSION # 6 ( Undercut )


The super popular Version #6 is the close ratio combination with 6 degree undercuts on 2nd, 3rd and forth gears.
Perfect combo.

Ratios:
1st gear   2.5 ratio.
2nd gear   1.708 ratio.
3rd gear   1.333 ratio.
4th gear   1.096 ratio.
5th gear   .967 ratio.
$ 599.00


Additional 1st gear undercutting would be a 1 degree cut and would be an extra $149.00
Cryo treatment is an extra $129.00.
Super finishing is an extra $349.00.
(4) Transmission bearing are $52.00
 

                                                                                                               SELECT ITEMS & OPTIONS:

 

 

VERSION # 7

 

 

These transmissions feature new splines (15 tooth), large unbreakable dogs, super polished and race proven.
These transmissions are for high horsepower applications or for people that simply want the best products for their special Honda CB750's.
The transmission also comes with the 4 bearings (mainshaft and counter shaft) (Japanese bearings)
Note:
These are the best transmissions ever offered for Honda cb750,s and are sold with the super finishing process already done.

1st

17 38

2.235:1

} 30.9%

} 19.8%

} 14.2%

} 11.8%

2nd

22 34

1.545:1

3rd

25 31

1.240:1

4th

31 33

1.065:1

5th

33 31

0.939:1

 

Overall reduction 1st 5th

58.0%

$ 2900.00
OUT OF STOCK


 

         

Back in stock!
Individual gear clusters.
New 2 degree acceleration and deceleration undercuts. (double cut)
Proven to be the perfect cuts for racing and street life.

Left photo:
4th gear double cut gear cluster.

Middle photo:

3rd gear double cut cluster.

Right photo:
2nd gear double cut cluster.

Note:
These double cut clusters are in stock and available in early and late. Check gear identification below for details.
Note:
Super shift drum always recommended. (below)
Note:
Outright sale. No exchange needed!

$ 159.00 Per Cluster     # TRAN-100

Call Or Email To Order
 

4th Gear Cluster
 
3rd Gear Cluster
 
2nd Gear Cluster
 

 

 

 

 

 

           

Super Shift Drums & Shift Forks.
These shift drums are used in every motor we rebuild. 
Super finished to a mirror finish for ultra-smooth shifting.
Upgrades to reduce the likelihood of jumping out of gear.
Super nice upgrade ..... A must for all stock or performance Honda cb750 models (69-78)

Shift Drum Only = $ 125.00

Super-finished shift forks (3) to complete upgrades. =  $ 65.00

 Shift Drums & Shift Fork Set Combo Set  =  $ 180.00


CHOOSE ITEM FROM DROP-DOWN LIST

 

 

Heavy Duty 2nd Gears

These gears are a must in all forms of racing.

ENL-HD2ND     $725.00
 

 

 

 

 

Final Drive #1

Used on high performance 1976 & under engine cases.
This is the preferred final drive shaft because the chain oiler hole has been eliminated from the factory. But, more importantly, the shaft is solid and will not break under extreme horsepower conditions. Inspected, blasted and new bearings have been installed.

ENL-FD1     $ 125.00


 

Final Drive #2

Used on 1976 & under engine cases.
Inspected, blasted and new bearings have been installed. The chain oiler has our alloy plug to eliminate the messy oiler.

ENL-FD2     $95.00
 

 

 

 

Final Drive #3

Used on 77-78 engine cases.
Inspected, blasted and new bearings have been installed.

ENL-FD3     $95.00
 

 

 


 

     
   

Transmission Bearing Set

These 7 transmission bearings are Japanese steel bearings .
Note: Notice the larger output bearing (lower right) this bearing is used on later years and preferred by high-performance folks.

ENL-SET1     $169.00
 

 

 

Transmissions Identification Early & Late

In order to have a good operating transmission, you will need a good operating clutch.
There should be no debate on the benefits of a under-cut transmission.
Statements like "It's harder to shift or get the transmission out of gear when shifting" only makes sense if the gears are under-cut with severe angles or the clutch is not operating correctly.

 

2nd Gear

 

 

4th Gear

 

3rd Gear


 

 

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Cycle X Global Headquarters

6246 US Hwy 51 South

Hazelhurst, WI 54531

Phone: 715-356-7346

Email: hotrodcyclex@gmail.com