SRAM PG-730 7-Speed Cassette 12-32T
Reliable 7-speed cassette replacement for older mountain bikes, hybrids, and recreational bikes.
The SRAM PG-730 7-speed cassette is a durable replacement cassette designed for riders maintaining or restoring 7-speed drivetrains. Featuring a practical 12-32T gear range and chrome-plated steel construction, the PG-730 delivers dependable shifting and broad gearing for climbing, commuting, and recreational riding.
Ideal for older bikes that still see regular use, this cassette offers straightforward compatibility with many Shimano/SRAM 7-speed systems.
Key Functional Details
- 7-speed cassette with wide 12-32T gearing range
- Chrome-plated steel construction for durability and corrosion resistance
- Compatible with many Shimano/SRAM 7-speed drivetrains
- Wide-range gearing improves climbing ability
- Standard HG-style cassette interface
- Reliable replacement option for older bikes still in active use
Technical Specifications
- Speed Compatibility: 7-Speed
- Gear Range: 12-32T
- Cog Sizes: 12, 14, 16, 18, 21, 26, 32
- Material: Chrome-Plated Steel
- Freehub Compatibility: Shimano HG-style
- Color: Chrome
Compatibility & Technical Notes
- Compatible with Shimano HG-style cassette freehub bodies
- Designed for 7-speed drivetrains only
- Works with SRAM and Shimano 7-speed chains and derailleurs
- Rear derailleur must support 32T maximum cog capacity
- Not compatible with freewheel systems
- Always inspect chain wear before installing a new cassette
Service / Ownership Context
- Excellent replacement for worn or skipping 7-speed drivetrains
- Common service item on older MTBs, hybrids, and comfort bikes
- New chain installation is strongly recommended with cassette replacement
- Simple drivetrain refresh can dramatically improve shifting quality
- Popular option for keeping older bikes economically repairable
Fit & Use Signals
- Good Fit: Older mountain bikes, hybrids, comfort bikes, recreational bikes using 7-speed cassette systems
- Not A Fit: Freewheel hubs, 8/9/10/11/12-speed drivetrains
- Use Case: Drivetrain replacement, budget bike restoration, climbing gear upgrade
1. Real Mechanic Insights
- Customers frequently confuse freewheels and cassettes—this is a cassette, not a threaded freewheel
- A worn chain will destroy a new cassette quickly if not replaced together
- Older 7-speed bikes are often worth repairing because parts remain affordable and durable
- 32T low gearing gives noticeably easier climbing than many stock older 7-speed setups
2. Typical Customer Searches
- “7 speed cassette”
- “12-32 cassette”
- “SRAM 7 speed cassette”
- “replacement cassette for old mountain bike”
3. Often Replacing
- Worn stock cassettes
- Rusted drivetrains
- Older narrow-range 7-speed cassettes
4. Good Fit / Not A Fit
- Good Fit: Shimano/SRAM 7-speed cassette bikes, older hybrids and MTBs
- Not A Fit: Freewheel systems, modern multi-speed drivetrains
5. Recommended Shop Pairings
- New 7-speed chain
- Rear derailleur adjustment service
- Chain wear inspection
- Cable and housing replacement
6. What Customers Compare This To
- Shimano TZ/HG 7-speed cassettes
- SunRace 7-speed cassettes
- Older Shimano MegaRange systems
- Threaded freewheel systems