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⚡ Shift into adventure mode with SunRace MFM300 – your ultimate MTB freewheel upgrade!
The SunRace MFM300-7 Speed 14-34T Freewheel Cassette is a high-performance, lightweight metal sprocket designed specifically for 7-speed mountain bikes. Featuring a broad 14-34T gear range, it delivers smooth, reliable shifting and enhanced climbing capability. Its durable black finish and OEM compatibility make it a top choice for riders seeking a seamless, hassle-free drivetrain upgrade.
| ASIN | B074P9G1MH |
| Best Sellers Rank | #84,410 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #31 in Bike Cassettes & Freewheels |
| Brand | SunRace |
| Brand Name | SunRace |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (172) |
| Date First Available | August 9, 2017 |
| Global Trade Identification Number | 04710944257359 |
| Included Components | Multi-Speed Freewheel |
| Item Dimensions LxWxH | 5.8 x 5.7 x 1.7 inches |
| Item Package Dimensions L x W x H | 6.57 x 5.75 x 1.65 inches |
| Item Weight | 545 Grams |
| Manufacturer | Sunrace |
| Material | Metal |
| Model Name | MFM300-7 Speed 14-34T Black Freewheel |
| Mounting Type | bicycle hub |
| Number of Items | 1 |
| Package Weight | 0.63 Kilograms |
| Part Number | UNRACE-MFM300.7DV0. |
| Rim Width | 8 Inches |
| Size | 14-34T |
| Sport Type | Ciclismo |
| Style | Multi-speed Freewheel |
| Warranty Description | Limited Warranty |
| Wheel Size | 20 Inches |
M**V
Perfect Replacement for Trek Freewheel - SunRace MFM300 Delivers!
After encountering a chain slip that left my Trek freewheel bent and malfunctioning, I was on the hunt for a reliable replacement. Installation was a breeze, and it seamlessly fit into my bike's drivetrain system. I appreciate how SunRace designed this freewheel to work flawlessly with OEM parts, ensuring a smooth and reliable shifting experience. I especially love the 14-34T range, which offers the perfect balance of gearing options for my cycling needs. Whether I'm tackling steep inclines or cruising at high speeds, the SunRace MFM300 allows me to find the right gear for any situation.
K**J
Awesome Cassette!
These things tend to be hit or miss and often require a little research. The research I way heavily on is what other people are saying in their respective reviews. I had an incredibly bent rim and the old cassette was so seized I tried to take the bearings apart to remove it. A few dozen micro bbs went flying. Not only did this part get my bike in rideable shape, it saved the hassle of trying to rebuild the old one, was conveniently easy to install, it arrived overnight, and and and the gearing ratio is far superior than the old one! Just as everyone has commented your climbing will improve substantially!
P**R
Tough and reliable.
I buy multiples of these in 7 and 8sp styles for refurbishing used bikes. Shimano compatible and cost effective. I recommend anti sieze paste or red grease for installation so it can be removed in a decade or 2 for replacement.
T**M
Heavy and noisy...
Why did you pick this product vs others?: It's the only FW with even steps between gears. However, it makes clinking noises under load. I used this to get a 7 speed rear and a lower low on my restored 1987 Cannondale SR500. Regrettably, I just ordered the Shimano model. UPDATE: The noise was a broken rear axle, not this freewheel. So, I upgraded my rating. It still could be a bit lighter.
M**R
Good wide range
Like Tom, I chose this for its even progression between all cogs, rather than a single "stump puller" cog stuck on a standard FW.
J**C
Worked great for mongoose fat bike
The mongoose fat bikes are built cheaper, and the gearset is terrible. This cassette gives you a broader gear range with a true low gear.
S**B
Excellent
Shifts great, easy to install, cheaper than the OEM Shimanos.
A**T
Cassette
Works great on my mountain bike!!!
Trustpilot
3 weeks ago
5 days ago