Stronglight cranksets
Stronglight cranksets on this page: Pulsion carbon double 170 | Pulsion carbon triple 175 | Speedlight triple 165 ISIS | Speedlight triple 165/square-taper | Speedlight double 165 | Speedlight double 172.5 | Speedlight black 172.5 | Speedlight black 180 | Speedlight 180 triple | New Ironlight 170 double | Model 104 bis 170 | Stronglight 49D 52-42 chainring set
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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.
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 470 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.
- 470 grams
New and in the box
The arms have a wonderful and different design. Metal inserts for the pedals are molded into the arms.
The crank backs, showing the splined ISIS bottom bracket fittings.
Close-up of a Stronglight Pulsion one-key release.
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.
- Weight is 555 grams
New in the box, and ready to be mounted on your bike
Close-up, showing Stronglight's innovative crankarm design.
From the back, showing the big ring's shifting ramps and pins.
Close-up of a Stronglight Pulsion one-key release.
Stronglight Triple Speedlight 165mm crankset, 30-42-52 chainrings made for splined ISIS drive. New, $299.00
Part# 61205
- This beautifully finished triple crankset 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.
- We have two in stock
New in the box
Stronglight product has always been well finished. This crankset is no exception
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 Triple Speedlight 165mm crankset, 30-40-50 chainrings, made for square-taper spindle. New, $250.00
Part# 61138
New, in the box. Made for square-tapered spindles
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.
You can convert any Stronglight Speedlight double crankset to a triple by using Stronglight 130BCD/74BCD conversion chainrings, which are posted here.
This is a really nice-looking crankset made by one of the world's most experienced crankset makers.
Back side of crankset showing lifiting pins on big ring.
Stronglight Speedlight 172.5 crankset 39-53 chainrings. New in box, $250.00
Part# 61023
- We have two in stock
- We have a 40-tooth middle adapter ring to turn this crankset into a triple
- It has a standard ISO square taper and is made for a 111mm triple bottom bracket axle.
- You can convert any Stronglight Speedlight double crankset to a triple by using Stronglight 130BCD/74BCD conversion chainrings, which are posted here.
The 53-tooth ring has lifting pins to improve upshifts.
And it is new, in the box.
Stronglight Black Speedlight 172.5 crankset 39-53 chainrings. New in box, $250.00
Part# 61024
- We have five in stock
- We have a silver 40-tooth middle adapter ring and silver inner ring to turn this crankset into a triple
- It has a standard ISO square taper and is made for a 111mm triple bottom bracket axle.
- You can convert any Stronglight Speedlight double crankset to a triple by using Stronglight 130BCD/74BCD conversion chainrings, which are posted here.
A striking, beautifully made crankset
In its factory box
Stronglight Black Speedlight 180 crankset 39-53 chainrings. New in box, $300.00
Part# 61200
- This Speedlight is made for 9-10 speeds. We believe this crankset was produced in the early 2000s.
- We have a silver 40-tooth middle adapter ring and silver inner ring to turn this crankset into a triple
- It has a standard ISO square taper and is made for a 111mm triple bottom bracket axle.
- You can convert any Stronglight Speedlight double crankset to a triple by using Stronglight 130BCD/74BCD conversion chainrings, which are posted here.
Nine and ten-speed compatible
And it is new, in the box.
Stronglight Speedlight 180 triple crankset 30/42/52 chainrings. New in box, $300.00
Part# 61201
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.
Nine and ten-speed compatible
In a Stronglight box, with a nifty sticker.
Stronglight Ironlight 170 mm crankset, 42-52 rings. New. $250.00
Part# 61127
The Ironlight cranks were produced in the 1980s and 1990s. They fit square-taper spindles made to ISO specifications and have a 130 bolt diameter.
This crankset has 42-52 rings designed for 9- and 10-speed applications.
Fresh from the time machine.
Just the right crankarm with rings
Here is the right crank flipped over. You can see the big ring has lifting pins to help with up-shifts.
The left arm
The back of the left arm
Stronglight 104bis crankset, 170 arms, 52-42 rings.
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 # 1. Used, $150.00
Part# CK-40
The rings show very light wear
Stronglight 104bis crankset # 2. Used, $150.00
Part# CK-40-d2
Cleaned up and ready to mount
Here's another view of a classic Stronglight crankset
And from the back
Anther look at the back of the crankset.
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.
Though older than most people on this planet, these rings are in great condition with many miles (or kilometers) left in them.
The inner ring attaches to the outer ring.
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