Call us on 01278 441500

Shimano MF-HG37 7 Speed Screw On Freewheel 13-28T

£15.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Product Reviews (0)
Questions & Answers (3) Q & A
A reliable 7-speed screw-on freewheel
Hyperglide gear sprockets ensure accurate and smooth shifting every time - up or down the gears
Compact and convenient unit for 7-speed gear systems
Multi-freewheel design means the whole unit is simply screwed onto a compatible hub
Suitable for a wide range of bikes
Gear Ratio: 13 / 15 / 17 / 19 / 21 / 24 / 28T
Download File  
Be the first to write a review
Feel free to leave a review of this product, good or bad it helps other customers with their buying decision.
Questions & Answers (3)
Is this freewheel new
13 Oct 2018
Yes, all our products are brand new unless otherwise listed.

thanks - 15/10/18
Would this be a drop-in replacement for a shimano MF-TZ21 ?
17 Aug 2018
I like the idea of having 13 teeth on the smallest cog, rather than 14.
Yes you will be able to straight swap those.

What is the stack height on this?
15 Mar 2018
I'm refurbishing a '69 Mercian. I've had the frame spread to 130 and now need to upgrade the transmission onto NOS Campag l/f record screw on hubs, currently running 13/24t 31mm 6sp-freewheel. I want to upgrade to 7sp with 28t. Will this item suit? Also which chain should I use?
Hi there,

The total overally is roughly 34.6mm.
You can use most 3/32 6/7/8spd Shimano chains.