Atelier 700Open the shop

Archives — category guide · Archives

The Cassette Shelf, Counted Cog by Cog

I sort the small parts drawer on quiet afternoons, so I end up knowing what is actually on the shelf.

A cassette is a simple thing to shop for once you accept that only three numbers decide whether it can go on your bike: what freehub body it needs, how many sprockets it has, and how big a cog your rear derailleur must be able to reach. Everything else — the feel of the jumps, the weight, the finish — is preference. The archive holds five cassettes right now. Here is how they line up, read straight off the manufacturer sheets we have on file.

One note before the tables. Facts here are derived or verified: derived means one manufacturer or standards sheet states it, verified means two independent publishers agree. No bike in our fleet is fully verified yet. That matters less for cassettes than for brakes or steerers, but it is why some answers below stop short of a yes.

The narrow-range road option

Start with the tightest spread on the shelf. This is the cassette for someone who wants small steps between gears and rides mostly rolling ground, and it asks the least of the derailleur of anything here.

BrandSRAM
Manufacturer part numberCS-PG-1170-A1 11-32
Requires — Freehub bodyShimano HG, 11-speed road body (+1.85 mm)
Requires — Rear speeds11 speeds
Requires — Rear derailleur max cog≥ 32 t

SRAM PG-1170 cassette 11-32T, 11-speed

Two eleven-speed wide-range choices

The PG-1130 pair is where most upgrade questions land. Both are eleven-speed. They differ in the size of the biggest cog, and — this is the part people miss — in which freehub bodies they will sit on. The wider of the two is listed for either a standard Shimano HG body or the slightly wider road body, which makes it the more flexible of the two on paper.

BrandSRAM
Manufacturer part numberCS-PG-1130-A1 11-36
Requires — Freehub bodyShimano HG, 11-speed road body (+1.85 mm)
Requires — Rear speeds11 speeds
Requires — Rear derailleur max cog≥ 36 t
BrandSRAM
Manufacturer part numberCS-PG-1130-A1 11-42
Requires — Freehub bodyShimano HG, 8/9/10-speed body (also 11/12-speed MTB HG cassettes) or Shimano HG, 11-speed road body (+1.85 mm)
Requires — Rear speeds11 speeds
Requires — Rear derailleur max cog≥ 42 t

SRAM PG-1130 cassette 11-36T, 11-speed

SRAM PG-1130 cassette 11-42T, 11-speed

The nine-speed wide-range outlier

The microSHIFT is the odd and useful one. Fewer sprockets, wide spread, and it lives on the plain Shimano HG freehub body that has been on hardtails and older touring bikes for decades. If you have an ageing nine-speed drivetrain and a derailleur with real capacity, this is the cassette that keeps it in service instead of replacing the whole system.

BrandmicroSHIFT
Manufacturer part numberCS-H093 11-46
Requires — Freehub bodyShimano HG, 8/9/10-speed body (also 11/12-speed MTB HG cassettes)
Requires — Rear speeds9 speeds
Requires — Rear derailleur max cog≥ 46 t

microSHIFT ADVENT H-Series 9-speed cassette 11-46T

The widest range, on its own freehub standard

The Shimano SLX is the widest spread here and the least interchangeable. It does not use an HG body at all; it needs Micro Spline, which means the hub or the freehub body has to be built for it. No spacer, no adapter, no shim trick. Either your wheel has that interface or this cassette is not a candidate.

BrandShimano
Manufacturer part numberCS-M7100-12 10-51
Requires — Freehub bodyShimano Micro Spline (12-speed MTB)
Requires — Rear speeds12 speeds
Requires — Rear derailleur max cog≥ 51 t

Shimano SLX CS-M7100-12 cassette 10-51T, 12-speed

A cassette that does not match the freehub body is out, full stop. There is no adapter that adds sprocket space you do not have.

Which bikes these fit

Only one bike in the archive has a freehub fact on file against these five, and the answer is the same every time. The Giant Escape 3 (2024) uses a threaded freewheel hub, not a cassette freehub. That is a different mounting system entirely: the sprocket cluster threads onto the hub instead of sliding over splines.

Freehub bodyThreaded freewheel hub (1.37" × 24 tpi)
Wheel size (ISO bead seat)700c / 29" (ISO 622)
Brake actuationCable rim brake

So, plainly: the microSHIFT ADVENT H-Series 9-speed cassette 11-46T does not fit the Giant Escape 3 (2024). The Shimano SLX CS-M7100-12 cassette 10-51T, 12-speed does not fit the Giant Escape 3 (2024). The SRAM PG-1130 cassette 11-36T, 11-speed does not fit the Giant Escape 3 (2024). The SRAM PG-1130 cassette 11-42T, 11-speed does not fit the Giant Escape 3 (2024). The SRAM PG-1170 cassette 11-32T, 11-speed does not fit the Giant Escape 3 (2024). In each case the freehub body does not match and the rear sprocket count does not match; the bike's derailleur capacity is not on file at all, which would be a second question if the first one had gone the other way.

Giant Escape 3 (2024)

How to choose

Three checks, in order

  1. Identify the freehub body Pull the wheel and look at the splines, or find the hub's own sheet. Plain HG, wider road HG, Micro Spline and threaded freewheel are four different worlds. This check eliminates most of the shelf immediately, which is a good thing.
  2. Match the sprocket count to the shifter The cassette has to have the same number of sprockets as your rear shifter has clicks. Mixing counts gives you shifting that is nearly right, which is worse than obviously wrong.
  3. Check the derailleur's largest cog Each cassette above lists a minimum capacity. If your derailleur cannot reach that big cog, the chain will not make the last shift and something will get bent. If that number is not on your derailleur's sheet, the honest answer is unknown, and we will not sell into an unknown.

Past those three checks, choose by terrain. Tight spread for flat riding and steady cadence. Middle spread for hills you already climb without walking. Widest spread if you are carrying weight or riding grades that hurt. Range is not free: the bigger the jumps, the more you feel each shift.

Can I put any of these cassettes on the Giant Escape 3 (2024)?
No, and the archive says so one pair at a time. The microSHIFT ADVENT H-Series 9-speed cassette 11-46T does not fit the Giant Escape 3 (2024). The Shimano SLX CS-M7100-12 cassette 10-51T, 12-speed does not fit the Giant Escape 3 (2024). The SRAM PG-1130 cassette 11-36T, 11-speed does not fit the Giant Escape 3 (2024). The SRAM PG-1130 cassette 11-42T, 11-speed does not fit the Giant Escape 3 (2024). The SRAM PG-1170 cassette 11-32T, 11-speed does not fit the Giant Escape 3 (2024). The hub takes a threaded freewheel, and the sprocket counts do not line up either.
Is there an adapter for the Micro Spline cassette?
Not one we would sell you. The Shimano SLX CS-M7100-12 cassette 10-51T, 12-speed requires a Micro Spline freehub body. That is a hub-level change, not a spacer.
Why do two cassettes with the same sprocket count list different freehub bodies?
Because eleven-speed road and mountain clusters were built to slightly different widths. The wider PG-1130 is listed for both plain HG and the wider road body; the narrower two are listed for the road body only. Read the requirement row, not the sprocket count.
My derailleur's capacity is not written anywhere. What now?
Then the fit is unknown, and unknown is an answer rather than a quiet yes. Send us the model and we will look for a manufacturer sheet before anyone spends money.

What to remember

  • Freehub body first, sprocket count second, derailleur capacity third. In that order, every time.
  • The widest-range Shimano option needs Micro Spline and cannot be adapted onto an HG hub.
  • The wider PG-1130 is the most flexible on freehub bodies; the narrower SRAM pair are road-body only.
  • The microSHIFT nine-speed is the one that keeps an older HG drivetrain alive.
  • Every cassette in this guide does not fit the Giant Escape 3 (2024): it is a threaded freewheel hub.
  • No bike in the fleet is fully verified yet, so where a required measurement is missing we say unknown and stop.

That is the shelf as of this printing, in 2026. If your bike is not in the archive yet, tell us the hub and the shifter and we will add the facts before we offer an opinion.

More in the Journal

  • What We Still Don't Know About the Grail CF SL 7

    The Canyon Grail CF SL 7 (2025) sits in our fleet with one source behind each fact and no second publisher agreeing yet. Here is what that means, which answers still stand, which ones wait, and what would change them.

  • SRAM DUB bottom brackets, sorted by shell

    Five SRAM DUB bottom brackets sit in the drawer. They all hand the crank the same spindle interface; what separates them is the frame shell they need. Here is each one by its numbers, plus the one projected verdict we have on file against a bike in the fleet.

  • Why your 11-speed chain fits — and the 12-speed one does not

    Chain compatibility comes down to one standard most boxes print as a speed count: the chain width. Here it is for the two KMC chains people ask about most, and what it means on an 11-speed and on a 12-speed bike from the fleet.

  • The Giant Escape 3, As Far As Our Paper Goes

    A plain accounting of the Giant Escape 3 (2024): the measurements we have on file, the ones we do not, the three regions worth reading before you buy, and four listed parts with their projected verdicts.

  • Rear Wheel of the Giant Fathom 29 2: What Bolts On

    A region guide to the rear wheel of the Giant Fathom 29 2 (2022): the cited frame and wheel facts we hold, the two Maxxis parts projected to fit, why each verdict lands where it does, and the measurements that are still missing from the file.

  • The Glory Advanced Is on File, Not Yet Verified

    Every fact we hold on the Giant Glory Advanced (2025) comes from a single cited source. That is enough to answer some questions and not enough to answer others. Here is exactly which is which, and what would move a line from unknown to answered.

  • Setting Up a Rear Derailleur on the Bench at Home

    A plain bench procedure for hanging, limiting, indexing and clutch-checking a rear derailleur at home, plus the three rear derailleurs the shop lists and how they read against the Canyon Grail CF SL 7 (2025).

  • Swapping a Cassette at Home, Without Guesswork

    A bench procedure for removing and installing a rear cassette, the spec rows that decide which cassette you can even buy, and the three cassette pages the shop lists — including why all three are projected not to fit the Canyon Grail CF SL 7 (2025).

  • The e12 chain and the Grail: a clean match on the drivetrain

    The KMC e12 e-bike chain, 12-speed fits the Canyon Grail CF SL 7 (2025). The chain standard on the bike's sheet matches the chain standard the part requires. Here is the reasoning, the rows behind it, and what happens when you bring an older chain to the same drivetrain.

  • The KMC X10, and the one thing it asks of your bike

    The KMC X10 chain, 10-speed has a single requirement: a 10-speed drivetrain. We read the spec rows, then check it against the two bikes on file with the same chain standard — the Giant Fathom 29 2 (2022) and the Kona Sutra (2025). Both come back as fits, on derived facts.

  • The X9 and the Roam: one chain, one answer

    The KMC X9 chain, 9-speed fits the Giant Roam 2 Disc (2021). The chain standard on the bike matches the chain standard the part asks for, and both facts are on file. Here is the reasoning, the spec rows behind it, and the chain that does not fit.

  • Rotor size is a safety question, not a taste

    A bigger rotor brakes harder. It also loads the fork mount beyond what it was tested for when it exceeds the fork maximum. Here is why a rotor reads "unknown" on a single-sourced bike, "does not fit" when the interface is wrong, and "unknown — safety-critical" when the maximum is not on file.

  • The 1.85 mm spacer: the cassette that confuses everyone

    An 8/9/10-speed cassette on an 11-speed road freehub: why there is a gap, why a 1.85 mm ring fills it, how the resolver treats that ring — and why the page can still say "unknown" after the freehub question is settled.

  • DUB: One Spindle, Four Shells

    SRAM DUB is a crank spindle standard measured at 28.99 mm. Here is what that number does mechanically, which bottom brackets in our archive carry it, and why the shell in your frame — not the spindle — decides what you can buy.

  • What "unknown" means in this shop

    A bike we have not verified stays on the floor with a sign on it, not in the back room. Here is what that sign says, with the Brompton C Line as the live example, and why we would rather lose the sale than guess.

The shop · Atelier 700