Shimano Dura-Ace Track

In 1981 Shimano changed their nomenclature to better represent the components' name. They have done so before but the change from 1981 stuck and is still used as of today. As such, I am going to try to squish identical groups with different names under the same category.

Dura-Ace Track (1972-1978)

Available from 1972 to 1978

GA-100

BCD:

Avail. Crank Lengths: 165mm, (167.5mm), 170mm, (172,5mm) or 175mm

Pedal Thread: 9/16"x20

Chain size: 1/2" x 1/8"

Torque figure:

GB-100

Spindle type: Square

Spindle Length: 112mm

Chain Line: 1/2" x 1/8"

Available Threadings: BSC, FR or ITA

Torque figure:

Tool:

HA-300 (previously called H-741 or H-841 for front and rear wheel hubs respectively)

No. of Spoke Holes: 36, 32 or 28

Front Overlock nut dimensions: 100mm

Rear Overlock nut dimensions: 110mm or 120mm

FA-200 (previously called FR-912>FR-916)

Chain size: 1/2" x 1/8"

Thread: 1,37"x24TPI

Available Teeth: 13, 14, 15 or 16 teeth

UA-200 (Previously called K-902)

Thread Dimensions:

Lock Washer type:

A:

B:

C:

D:

l1:

l2:

L:

HS-741 or HS-841

Small Flange Wheel Hubs made unavailable from 1975 onwards.

Dura-Ace 7000 (or 10) (1977-1981)

Available from 1977 to 1981

This was Shimano's attempt at revolutionising track racing. "The 10mm pitch system reduces the overall weight and size of the components"

FC-7000 (previously called GA-110)

BCD:

Avail. Crank Lengths: 165mm or 170mm

Pedal Thread: 9/16"x20

Chain size: 10mmx3mm

Torque figure:

HB-7020 (previously called HA-310)

No. of Spoke Holes: 36, 32 or 28

Front Overlock nut dimensions: 100mm

Rear Overlock nut dimensions: 110mm or 120mm

CN-7000 (previously called QA-100)

Chain size: 10mmx3mm

SS-7000 (previously called FA-210)

Chain size: 10mmx3mm

Thread: BC33x24TPI

Available Teeth: 14, 15 or 16 teeth

Dura-Ace 7500 (1981-1985)

Available from 1981 to 1985

FC-7500

BCD: 144

Avail. Crank Lengths: 165mm, 167.5mm or 170mm

Pedal Thread: 9/16"x20 or 14x1,25

Chain size: 1/2" x 1/8"

Torque figure:

BB-7500

Spindle type: Square

Spindle Length: 107mm (BSC) or 109mm (ITA)

Chain Line:

Available Threadings: BSC, FR or ITA

Torque figure:

Tool:

HB-7520

Large Flange Wheel Hubs.

No. of Spoke Holes: 36, 32 or 28

Front Overlock nut dimensions: 100mm

Rear Overlock nut dimensions: 110mm or 120mm

SS-7500

Chain size: 1/2" x 1/8"

Thread: 1,37"x24TPI

Available Teeth: 13, 14, 15 or 16 teeth

HP-7500

Thread Dimensions: BSC or FR

Lock Washer type:

A:

B:

C:

D:

l1: 21mm

l2: 11.5mm

L:

Dura-Ace 7600 (1986-1998)

Available from 1986 to 1998

FC-7600

BCD: 144

Avail. Crank Lengths: 165mm, 167.5mm, 170mm, 172.5mm or 175mm

Pedal Thread: 9/16"x20TPI

Chain size: 1/2" x 1/8" or 1/2" x 3/32"

Torque figure: 35-50nm

BB-7600

Caged ball bearings. Available in BSC, FR or ITA. 109mm

Spindle type: Square

Spindle Length: 109mm

Chain Line:

Available Threadings: BSC, FR or ITA

Torque figure:

Tool:

BB-7610

Industrial ball bearings version of BB-7600. Different specifications listed.

Chain Line: 42.5mm

Available Threading: BSC, NJS or ITA

Torque figure: 50-70nm

Tool: TL-UN74-S

HB-7600 (Front and Rear) (Small Flange)

No. of Spoke Holes: 36, 32, 28 or 24

Front Overlock nut dimensions: 100mm

Rear Overlock nut dimensions: 110mm or 120mm

HB-7600 (Front and Rear) (Large Flange)

No. of Spoke Holes: 36, 32, 28 or 24

Front Overlock nut dimensions: 100mm

Rear Overlock nut dimensions: 110mm or 120mm

SS-7600

Chain size: 1/2" x 1/8" or 1/2" x 3/32"

Thread: 1,37"x24TPI

Available Teeth: 13, 14, 15 or 16 teeth

HP-7600

Thread Dimensions: BSC or FR

Lock Washer type:

A: 30mm (JIS) or 30.2mm

B: 27mm (JIS) or 26.4mm

C:

D:

l1: 21mm

l2: 11.5mm

L: H+37.6mm

Dura-Ace 7700 (2000-2022)

Available from 2000 to 2022

FC-7710

BCD: 144

Avail. Crank Lengths: 165mm, 167.5mm, 170mm, 172.5mm or 175mm

Pedal Thread: 9/16"x20TPI

Chain size: 1/2" x 1/8" or 1/2" x 3/32"

Torque figure: 35-50nm

Cap Torque figure: 5-7nm

BB-7700

Caged ball bearings.

Spindle type: Octalink

Spindle Length: 109.5mm

Chain Line: 42.5mm

Available Threadings: BSC or ITA

Torque figure: 50-70nm

Tool: TL-UN74-S

BB-7710

Industrial ball bearings version of BB-7700. Different specifications listed.

Available Threadings: BSC

HB-7710 (Front and Rear)

Small Flange Wheel Hubs.

No. of Spoke Holes: 36, 32, 28 or 24

Front Overlock nut dimensions: 100mm

Rear Overlock nut dimensions: 110mm or 120mm

HP-7410

Thread Dimensions: BSC or FR

Lock Washer type: Small Notch or Notch

A: 30mm (JIS) or 30.2mm

B: 27mm (JIS) or 26.4mm

C: 22.3mm

D: 32mm

l1: 24.1mm

l2: 13.5mm

L: H+37.6mm

Track-specific Frame Parts

N-103 (12/1972-02/1973)

Standard Track Fork Ends.

NC-100 (1975-12/1978)

Low-er end Track Fork Ends.

NC-200 (12/1978-)

High-er end Track Fork Ends. Appeared first in a catalog dated December 1978 .

FE-SF10 (-1981)

Low-er end Track Fork Ends. (Most likely a rename of the NC-100 to meet more appropriately their newly made nomenclature)

FE-UF10 (1981-1984)

High-er end Track Fork Ends. (Most likely a rename of the NC-200 to meet more appropriately their newly made nomenclature)

Sources

This one specific topic on forum.cycling.co.uk, My main source of documentation as it allows download of the material. It is important to note that starting from the early 1990s, all of these catalogues come from Shimano itself. I tried really hard to find my way through Shimano's website to pick up other stuff that might have been interesting but I couldn't. I have no clue how they managed it. disraeligears.co.uk, Probably the BEST source on derailleurs but, as a result, has lot of documentation that supplements the retrobike.co.uk archive. si.shimano.com, Shimano's own website provides a LARGE amount of archived material for singular components.