South Salem Cycleworks
(503) 480-2001
email: sscycleworks@comcast.net

Stronglight cranksets

Stronglight cranksets on this page: Pulsion carbon double 170 | Pulsion carbon triple 175 | Speedlight triple 165 | Speedlight double 165 | Speedlight triple 172.5 | New Ironlight 170 double | Model 104 bis 170 | Model 104-Peugeot 170 | Stronglight 49D 52-42 chainring set

We do not have on-line sales at this time. Please call us: (503) 480-2001 or email: sscycleworks@comcast.net

Stronglight is a revered component maker most famous for cranksets and headsets. The firm started making cranks just before the second world war.

In the 1970s and 1980s the biggest French bike makers equipped their best bikes and teams with Stronglight cranksets. Most notably, Peugeot pro and semi-pro bikes were Stronglight equipped. Bernard Thevenet won two Tours de France using Stronglight equipment.

The firm is located in the French bike making capitol, St. Etienne.

On this page, we've tried to arrange the items in manufacturing date order, latest production at the top.

Bernard Thevenet

Here's Thevenet winning the 1977 Tour de France using Stronglight.


Stronglight Pulsion 170mm carbon crankset 39-52 chainrings made for splined ISIS drive. New, $500.00

Part# CK-115

The fantastically designed Stronglight Pulsion crankset is one of the lightest available. Produced in the early 2000s, the crankset weighs in at about 450 grams. Though it looks and feels featherlight (it is), the crankset is quite stiff and provides an efficient transfer of power.

The light-alloy chainrings have Stronglight's Ceramic-Teflon treatment for long life, low friction and better shifting.

The big ring has ramps and pins to optimize shifting.

Pulsion crankset

New and in the box

Stronglight Pulsion crankset

The arms have a wonderful and different design. Metal inserts for the pedals are molded into the arms.

Stronglight Pulsion cra nkset

The crank backs, showing the splined ISIS bottom bracket fittings.


Stronglight Pulsion 175mm carbon triple crankset 30-42-52 chainrings made for splined ISIS drive. New, $500.00

Part# CK-116

The fantastically designed Stronglight Pulsion crankset is one of the lightest available. Produced in the early 2000s, the double version of this crankset weighs in at about 450 grams. Though it looks and feels featherlight (it is), the crankset is quite stiff and provides an efficient transfer of power.

The light-alloy chainrings are made from Stronglight's super-hard 7075-T6 alloy.

The big ring has ramps and pins to optimize shifting.

Stronglight Pulsion triple crankset

New in the box, and ready to be mounted on your bike

Stronglight triple Pulsion crankset

Close-up, showing Stronglight's innovative crankarm design.

Stronglight Pulsion crankset

From the back, showing the big ring's shifting ramps and pins.


Stronglight Triple Speedlight 165mm crankset, 30-52-52 chainrings made for splined ISIS drive. New, $299.00

Part# CK-120

This beautifully finished triple cranked is new in the box. The Speedlight design uses an adapter on the middle ring to mount the small inner ring. It is made for 9-10 speeds. Both the middle and outer ring have lifting pins to help shifting. We believe this crankset was produced in the early 2000s.

Speedlight triple crankset

New in the box

Speedlight crankset

Stronglight product has always been well finished. This crankset is no exception

Stronglight Speedlight crankset

The pins to help lift the chain when upshifting can be seen on the middle and outer rings. Also you can see the ISIS axle splines.


Stronglight Speedlight black 165mm double crankset 39-53 chainrings. New, but has been mounted on bike, $250.00

Part# CK-125

Black anodized arms and rings. Sharp! The 53 ring has lifting pins to optmize shifting up to the big ring. The arms have a built-in allen key fixing/extractor bolt. The arms fit on standard ISO square-taper bottom bracket axles.

While this crankset is new, it was mounted on a bike on a workstand. Hence, the a front derailleur mark on the inside of the right crank (see second photo). For optimal function this crankset requires a front derailleur with a flat outer plate.

Speedlight 165 mm crankset

This is a really nice-looking crankset made by one of the world's most experienced crankset makers.

Stronglight Speelight crankset

Back side of crankset showing lifiting pins on big ring.


Stronglight Speedlight 172.5 triple crankset 30-42-52 chainrings. New in box, $250.00

Part# CK-130

The Speedlight design uses an adapter on the middle ring to mount the small inner ring. It is made for 9-10 speeds. Both the middle and outer ring have lifting pins to help shifting. We believe this crankset was produced in the early 2000s.

It has a standard ISO square taper and is made for a 111mm triple bottom bracket axle.

Sppedlight crankset

This crankset is new in the box and comes with the factory mounting instructions and warrantee.

Stronglight speedlight 172.5 triple crankset

The crankset comes with integral mounting/removal allen key fitting.

Stronglight Speedlight 172.5 crankset

Back of crankset showing square taper axle mounting,


Stronglight Ironlight 170 mm crankset 39-53 red rings. New. $250.00

Part# CK-140-1

The Ironlight cranks were produced in the 1980s and 1990s. They have forged steel crankarms with aluminum spiders. They fit square-taper spindles made to ISO specifications and have a 130 bolt diameter.

This crankset has 39-53 (red!) rings designed for 9- and 10-speed applications.

Stronglight ironlight crankset

Fresh from the time machine.

Stronglight Ironlight crankset

The big ring has lifting pins to help with up-shifts.


Stronglight 104bis crankset, 170 arms, 52-42 rings. Used, $150.00

Part# CK-40

The Stronglight 104 cranks were produced starting in 1977 and through 1983. They were intentionally given a Campagnolo-like appearance, but they retained the traditional Stronglight 122mm BCD (bolt circle diameter). This allowed the mounting of a 38 inner chainring.

The 104 crankset came in two models, one with plain rings, and the 104bis, with the factory drilled rings, like our example. The Stronglight 104 came only in 170mm crank arm length. The crank arms are silver anodized.

Stronglight 104bis crankset

The rings show very light wear


Stronglight 104 "Peugeot" crankset, 170 arms, 40-52 rings. Used, $125.00

Part# CK-41

To the the best of our knowledge, this crankset is the first time Stronglight stamped a bike-maker's name and logo on the arms. We date this crankset to the early 1980s. It was put on Peugeot's high-end bikes, such as the Peugeot PSV.

The Stronglight 104 cranks were produced starting in 1977 and through 1983. They were intentionally given a Campagnolo-like appearance, but they retained the traditional Stronglight 122mm BCD (bolt circle diameter). This allowed the mounting of a 38 inner chainring instead of Canpagnolo's 42-small limit.

The Stronglight 104 came only in 170mm crank arm length. The crank arms are silver anodized.

Stronglight Peugeot crankset

Our "104-Peugeot" Stronglight crank is in great condition. The famous Peugeot lion logo can be seen below the "Peugeot" name on the arms.


Stronglight 49D 52-42 chainring set. used. $80.00

Part# CR-02

Stronglight introduced its Model 49 crankset just before the Second World War. The initial production had steel arms with aluminum rings. The "D" in the model name stands for Duralumin (aluminum), which the company began using for the crank arms about 1949. There were constant re-designs to the chainrings.

Our ring set is the first iteration of the famous Stronglight star pattern. This was made from the 1950s into the 1960s. We can't date our chain ring set any closer than that. This set probably dates to the early 1960s.

Like all Stronglight production of the era, the aluminum on our set has a natural, unanodized, polished finish. The crank arm is bolted to the five center holes.

Stronglight 49D chainrings

Though older than most people on this planet, these rings are in great condition with many miles (or kilometers) left in them.

Stonglight 49D chainrings

The inner ring attaches to the outer ring.