new Crust Heartbreaker crankset: compact double, fun colors

[Brent Knepper]

from crust bikes, the bicycle company, end'a week email:

"The Heartbreaker Crankset is our take on a slim arm compact double. We drew from the classic Ritchey Logic cranksets to get the slim arm profile with a high offset. The high offset in the arms makes it so you can run a shorter bottom bracket than with most square taper cranks."

it's a 2x 42/26 crank, 170 arm length only

the big chainring's dedicated to the inside of a 110bcd spider and a lil guy on 74bcd inner bolts. square taper and they recommend starting at 110/113 spindle length. they say forged aluminum, curious if that's cold forged or melt forged? cute heart cutouts ◡̈  silver/black, or blue splatter ano or a rich brown, and minimal branding

$240 though ¯\_(ツ)_/¯

outer chainring setup reminds me of like a mix of the Dixna LA crank spider and the Bikingreen chainrings inner offset, with added hearts, but the arm shape is hella similar to ol ritchey logiq cranks. wonder what the chainline is like on a 110 spindle? prolly can't run these as a triple but there's at least one person coming to mind who might take that as a challenge

anyway: fun! interesting! wild to think two new slim, silver, 110bcd cranks are coming out in 2024 (these crustinis and the new riv silverers)

also these are probably the antithesis of all the low-Q experimentations going on in the rbw/ibob goog-group world :)

-Brent, hudval, still chaotically puttin JIS triples on 102mm campy BBs jff

[Johnny Alien]

Thats a stellar looking crankset!!

[Bill Lindsay]

those that fret will fret about the odd big ring.  It doesn't look interchangeable with anything else, and I don't particularly trust Crust to have replacement rings years down the road.  I trust Rene Herse to stock rings.  I trust White Industries to stock VBC rings.  

BL in EC

[Russell Duncan]

Sorry Crust, but my next choice for a 110 crankset will be the TA Carmina Compact. That Crust looks good at first but I agree with Bill Lindsey, the big ring looks to be too proprietary, and probably won’t be available as time goes by. 

Russell Duncan

Connecticut River Valley, MA

[ian m]

What makes a 110bcd chainring proprietary? Is it that the stock ring seems to have shoulders pushing the chainline inbound? Do you think it is not compatible with any other 100bcd ring?

[Bill Lindsay]

Is it that the stock ring seems to have shoulders pushing the chainline inbound?  Yes, that's the main thing that I see.  Also, the countersink of any 42 "outer" will be on the wrong side.  A 42 "middle" will likely be countersunk correctly, and may have the shift aids in the right place, if the chain line and spacing work out.  This is all assuming one doesn't care about color matching.  Compatible "blue splatter" rings from other vendors are not likely.  If the inner runs on separate spacers, rather than forged-in posts, then I'd be more confident in my ability to make my own spacers to get things correct.

Do you think it is not compatible with any other 100bcd ring?  110bcd.  It's a possible maybe, in my view.  If I ever have one in my hands, it's the first thing I'd check.  If I was buying one, I'd call Crust and ask them, and maybe ask for a spare set of rings at purchase

Bill

[David Ross]

Ah to be young again. These old knees are now on 165mm cranks with 36/22 chainrings. 

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[Brent Knepper]

I dunno, I bet a normie 110 outer ring could work even with the countersink. I wonder if the extra machining, which I first speculated as an offset (ala bikingreen chainrings) to push the ring more inbound, is like actually meant to make the ring have a more "flush" look with the crank spider

I'm curious if the 110 spider configuration is more akin to the Sugino OX601D/Dixna/IRD Lobo type of cranks, where the 110 chainring just sits behind the spider, but then crust wanted to pretty it up a bit with the hearts and some bump-out material for a more flush look?

all of this is just fun conjecture that a 2 minute call to crust might wrap up- but hey, that's the innernet baby!

maybe the funniest thing to do would be: get a blue splatter crust crank. then put an ol bronze suntour 110 chainring or a biopace ring. and maybe a purple ano'd avid microdrive adapter with a 20t inner ring. I won't do this but it's humorous to me to imagine that setup

-brent, having a nice time online ◡̈ 

[Johnny Alien]

That is how I saw it when I looked at it. Thats why the description points out that the outer ring sits in a middle ring position. The ring is not inset its built up for nice appearance. I assume any standard ring will work mounted in the middle position.

[raw_meet]

Man that brown looks good, opens up some cool build possibilities. I really don't like the crust branding but it's not the most offensive i've seen from them.

[Mike Godwin]

There are some older 110/74 Suguino cranks out there that have the same arm profile as the Crust and Logic without the drip tip on the NDS arm. See 'em on fleabay, but I cannot recall the model name. I have one in the parts hoard that came off my BMC Monstercross. Spider arms are not quite as svelte, but the arms aren't "swoled" out either. 

[Kesler Roberts]

Anyone out there running these cranks?  Trying to decide between these and Rivendell Silver 1 as I move to 170mm cranks.  

[Will Boericke]

Achieve the same results with any early 90s mtb crankset....

[Garth]

Even with the any extra import fees, the Spa Cycles house brand cranks offer all that the Crust does at a fraction of the cost. Plus they're normal cranks, take any 110/74 ring. Forged 2014 alloy.  Also, you can get just the arms and they sell rings for TA, Stronglight and the own Spa brand.

https://www.spacycles.co.uk/m8b0s109p0/Drivetrain/Chainsets

In particular the TD-2 cranks, available as doubles or triples.

That gets me think, why is it the UK has some wonderful online retailers for selling the kind of parts we here use ? Spa Cycles and SJS Cycles in particular.

[Kesler Roberts]

Nice - I was not familiar with Spa cycles - may end up going that route.

[Ben Miller]

I just got and installed a Heartbreaker crank on this Ram I'm building up for my wife. I think it's really an awesome looking crank. 

[Kesler Roberts]

That looks great.  I almost got one but decided it was just too pricy for me.  I ordered one of Spa Cycles house brand super-compact doubles.  It was a good experience - they were able to put together a semi-custom configuration and shipping to the US was fast with no surprises.

[Gene B]

I've heard from a couple people that they (Spa Cycles) don't issue customers any type of shipment tracking (though I know they're legit)- can you confirm this? 

[Kesler Roberts]

I got a Royal Mail tracking number that then transferred to the USPS after the package cleared customs.  Took about a week from shipping to get to me.

[Nick Payne]

On Saturday, 14 September 2024 at 2:40:33 pm UTC+10 dros...@gmail.com wrote:

Ah to be young again. These old knees are now on 165mm cranks with 36/22 chainrings.

Ditto here. Over the past two or three years, I've migrated all my bikes to 160mm cranks, after having previously ridden 170mm cranks for over half a century. The 170s were starting to annoy my knees at the end of longer faster rides. By fitting 160s and raising the saddle 10mm to get the same leg extension at the bottom of the pedal stroke, all my knee problems have disappeared.

If you're looking for a cheaper 110/74 alternative (not as svelte nor as nicely finished as the Crust ones, but do exactly the same job), have a look at the Veno cranks that Alex's Cycle in Japan sell: https://alexscycle.com/products/black-friday-sale-veno-cotterless-pcd110-74mm-crank-arm-set. Only $US60 per pair, and available in 160/165/170 lengths. I recently fitted a set of these to an old bike that I keep in my sister's attic in Perth for when I visit there. The forging marks on the back of the crankarms indicate that they're manufactured by Andel.

Nick Payne

[Scott Garrison]

I also ordered a crank setup from Spa Cycles and they were very helpful. I cobbled it together with some Specialties T.A. chainrings and they fixed my order when I ordered the wrong ring to fit the crank. Same shipping tracking as mentioned above from Royal Mail, although it was closer to two weeks to get to delivered to the west coast.