Rohloff Caliber 2 Chain Wear Indicator
The Rohloff Caliber 2 (3000) is a hardened stainless steel chain wear indicator that shows in seconds whether your chain needs replacing – before a stretched chain eats your sprockets and chainring.
Why the Caliber 2?
Instant reading. Hook it into the chain: the deeper the measuring nose sinks between the rollers, the more worn the chain.
Two limits. Side A for aluminium and titanium sprockets (about 0.075 mm per link), side S for steel sprockets (about 0.1 mm per link).
Hardened stainless steel. A tool that stays accurate for years.
Saves money. A chain replaced in time keeps sprockets and chainrings running much longer.
Who is it for?
- Every rider with a chain. A quick check at every service or before a big tour.
- Speedhub and singlespeed riders. Protect the sprocket and chainring by changing the chain on time.
- Workshops. A clear, objective reading to show customers.
Specifications
| Rohloff article no. | 3000 |
|---|---|
| Chains | 1/2" × 3/32" derailleur chains (per retailer data) |
| Side A | Fully sunk = about 0.075 mm wear per link – replace to protect aluminium/titanium sprockets |
| Side S | Fully sunk = about 0.1 mm wear per link – replace to avoid skipping and protect steel sprockets |
| Material | Hardened stainless steel |
Frequently asked questions
How do I read it?
On a new chain the measuring finger barely enters between the rollers. When the gauge lies flat on the rollers, that side's limit is reached and the chain should be replaced.
Which side should I use?
Side A if your sprockets or chainrings are aluminium or titanium, side S if they are steel.
Does it check the sprockets too?
No. For Shimano HG sprockets use the Rohloff HG-Check (3100).
About Rohloff
Rohloff AG is a German engineering company based in Fuldatal near Kassel. It makes the SPEEDHUB 500/14, the 14-speed gear hub that touring, trekking and expedition riders have trusted for decades, and is also known for its workshop tools, chain and sprocket wear gauges and Oil of Rohloff chain lubricant.
BoodaBike (Massive Bikes, Budapest) is an official Rohloff service centre, trained by Rohloff, and an official European distributor of Rohloff hubs and parts. Everything we sell is genuine Rohloff, and we are happy to help you pick the right part.