This is just a short note to say that our 12-speed compatible 44/28 chainrings are back in stock. 42/26 rings are in production, as well as other ring sizes that have been sold out for a while. You may wonder why we offer so many chainrings choices. With 11- or 12-speed...
Recently, a reader asked: "Why are you so focused on saving a gram here or there? For the 99.999% of us who are not professionally racing, but just wanting to get out there and ride, shouldn't the focus be on function and longevity?" Of course, the reader is right – some...
After months of R&D and testing, we're now offering Rene Herse cranks with a 40-tooth one-by chainring. One-by is a great idea: Get rid of the front shifts that always break your rhythm, and you end up with 11 or 12 consecutive gears. For most riders, that's enough for all...
We're excited to announce that our ramped-and-pinned chainrings are 12-speed compatible. We knew that 12-speed was coming when we developed our 11-speed rings, so we tried to anticipate the requirements, so that our chainrings would be compatible with 12-speed as well. Now we've completed our testing, and we're happy to report...
Square taper bottom brackets may seem like anachronisms dating from the last century, and yet they remain the best option for metal cranks. Here is why our Rene Herse cranks use square tapers and will continue to do so in the future. Modern bottom brackets have larger spindles, so they can...
We're offering a new chainring combination for our 11-speed compatible Rene Herse cranks. The 48/33 is a perfect size for fast-paced group rides – you won't get dropped even on downhills with a tailwind, yet the 48 is a bit smaller than the more common 50, allowing you to stay...
Our Rene Herse cranks are available in three length: 165, 171 and 177 mm. We chose 3.5% increments, because that is the smallest difference you'll notice as you ride. That part is just common sense. What makes our cranks unique among small-production cranks is that we use different forging dies for...
Chainrings choice. It's one of the main attractions of our Rene Herse cranks – together with light weight, supreme reliability and, dare we say it, good looks. So when we presented our first 11-speed chainrings, it was only a matter of time until the program was expanded. Now we are...
At Compass Cycles, we have taken much of our inspiration from René Herse and his legendary bikes. In the past, we've talked about the great performance and incredible reliability of Herse's bikes, but what is even more striking is their beauty. You notice it immediately when you look at one...
Compass Cycles is introducing the first-ever 11-speed-compatible René Herse cranks and chainrings. And the first-ever René Herse chainrings with ramps and pins. These are not just any ramps and pins: They're carefully engineered to shift as well as the best cranks from the big manufacturers. We are proud to offer this...
Sometimes, we get questions about why our René Herse cranks aren't anodized. Some even wondered if this was a cost-saving measure. Rest assured, Compass never will choose a cheaper process over a better one. There is a reason why our cranks aren’t anodized: When I was racing, I bought a beautiful used Campagnolo...
Our Compass René Herse cranks are available in three lengths to cover the needs of nearly all cyclists. The lengths we offer are a bit unusual, but there is a reason for this: Our cranks use dedicated forgings for each length. The "net shape forging" makes our cranks stronger than if...
The photo above shows raw forgings for Compass René Herse cranks. Perhaps you will have spotted that they are all different: Their length varies in 6 mm steps. We introduce René Herse cranks now available in 165 mm and 177 mm lengths, in addition to the 171 mm we have...
Recently, we received our custom René Herse chainring bolts (above). Why in the world would we go through so much trouble and expense to make custom chainring bolts? They are pretty significant little bolts, because they are the finishing touch on the René Herse cranks. René Herse chainrings are 1 mm thicker...
Recently, I was on a familiar road, but riding it did not feel familiar. It seemed like I was straining to stay on top of my gear, whereas usually I just spin along. Was I exceptionally tired? I didn't feel that way... Then I remembered that I had replaced my 46-30...
At Compass Bicycles, we think a lot about manufacturing. We know what we want to make, but how should we make it, and where? We are not looking for the lowest cost, but for the highest quality. The conditions under which our products are made are an important consideration as...
When we became custodians of the René Herse name, we had three goals in mind: Bring back some of the best designs of René Herse, so that today's cyclists could enjoy their excellent function and aesthetic. Support classic René Herse bikes with components, so that they can be kept on the road,...
Our René Herse cranks come with classic 15 mm crank bolts. They are beautiful and easy to tighten. However, it can be hard to find a matching 15 mm wrench. Most wrenches have walls that are too thick to fit inside the hole of the crankarm. (We cannot make the...
I used to wonder why manufacturers offer things that are popular, even though they don't work well. I recently read an interview with a BMW engineer, who complained about the huge wheels that the company now puts on their cars. It turns out the large (and heavy) wheels ruin the...
Triple cranks are a good choice for some riders. The most common shifting system for triple cranks, Shimano's STI, only works with Shimano chainrings. Unfortunately, Shimano's chainring combinations are of limited use to most riders. If you want to customize your chainring sizes, you will have to use downtube or...
When we designed the new René Herse cranks, our goal was to create a crank that was as reliable and safe as any on the market. After all, we ride these cranks ourselves. We are especially proud that these cranks pass the stringent EN standards for racing bikes (EN 14781)...
Question from a potential customer: "If I purchase a Rene Herse crankset with its non-standard bolt-circle diameter, what guarantee do I have that Compass Bicycles will continue production of the chainrings for 5, 10 or 15 years?" Compass Bicycles makes products that we expect to last for decades. We have taken...
When we received another shipment of Rene Herse cranks recently, we built up and filled our pre-orders first. Some are shown above. All the cranks shown have different setups, except two. (Can you spot the two identical ones?) There are a dozen different chainring combinations in the photo above, yet they...
We just received a new shipment of René Herse cranks. In addition to the double and triple cranks, this production run includes the single-speed cranks (shown above). We also have all chainring sizes in stock (except 50 teeth, which are due to arrive in Seattle in a few days). The single-speed...
The first production run of the new René Herse cranks has sold out. Reports from users have been very positive. The cranks work well with current 10-speed drivetrains, as well as classic setups with 5-9 cogs in the rear. The second production run is under way. In a month or two,...
Should one grease the tapers of bottom bracket spindles before installing the cranks? Few topics spur as much controversy among bike mechanics as this question. In the old days, Campagnolo not only recommended mounting the cranks dry, they even suggested degreasing the tapers. The concern was that grease might facilitate the...
Customers who pre-ordered their René Herse cranks before February 1 should receive a box in the next few days. Inside... ...is the new René Herse crank. It is delivered with our custom crank bolts and pedal washers. We are ramping up production slowly to ensure the cranks are made to our...
Developing an excellent product takes time and care. The first run of our new René Herse cranks has been forged. Above, you see a raw forging being removed from the forging die. Above are the raw forgings for the crankarms of the first production run (three containers in the foreground). Around...
Net-Shape Forging The new René Herse cranks will be offered in one length only, 171 mm, which allows us to have the cranks forged to their final shape. (The photo above shows the raw forging.) The process is called "net-shape forging." The grain structure of the aluminum is aligned during the...
The new René Herse cranks have entered production. The arms are being forged, the chainrings are being machined, and the crank bolts are being made, each by specialist manufacturers who are among the best in their trade. The photo above shows the final production version of the arms and chainrings....
During the development of our new René Herse cranks over the last two years, I have been thinking a lot about crank design. Modern cranks are an interesting story of standards that evolved until nobody remembers why they were adopted in the first place. Here are a few questions that...
In our original announcement of the new René Herse cranks, we wrote that they were lighter than Campagnolo Record Carbon cranks. A few readers asked us to substantiate this. We weighed the cranks on Bicycle Quarterly's precision scale (above). We don't have the final chainrings for our new cranks yet, so...
When we presented the new René Herse cranks last week, a number of people wondered whether they would be strong enough. After all, most cranks have four or five spider arms, whereas the Herse cranks use only three. And what about the small bolt-circle diameter? Does it support the chainrings...
Compass Bicycles and René Herse Bicycles are proud to introduce a modern version of the classic René Herse crank. The new crank will be available this fall. Some products are hard to improve; they make you wonder why all components are not made that way. The classic René Herse cranks are...
