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Upgrade your eBike's drive system with a star ratchet hub manufactured by Wren Sports. Designed to excel in high-torque situations with powerful mid-drive motor eBikes. Available in 32 hole and 36 hole variants and can be set up for 190mm or 197mm rear-ends.
This bundle includes the hub, adaptor to fit your hub spacing and axle type (if applicable) and 40 Uncut 14G Spokes and Spoke Nipples.
What is a star ratchet hub?
A star ratchet hub is a robust and reliable hub design which distributes the load of your eBike's motor across 36 points-of-contact opposed to the 4-6 points-of-contact on a pawl based hub.
This addresses a common point of failure for many regular hubs where the pawls will break or strip the race in the hub causing the power to no longer be transferred to the rear wheel. The even distribution of power between the star ratchet teeth ensures a smooth and reliable drivetrain.
No Tool Construction
The star ratchet hub can be assembled and disassembled with no tools, resulting in easy access to bearings, freehub body replacements, and configuration between 190m and 197mm.
Overview
Upgrade your eBike's drive system with a star ratchet hub manufactured by Wren Sports. Designed to excel in high-torque situations with powerful mid-drive motor eBikes. Available in 32 hole and 36 hole variants and can be set up for 190mm or 197mm rear-ends.
This bundle includes the hub, adaptor to fit your hub spacing and axle type (if applicable) and 40 Uncut 14G Spokes and Spoke Nipples.
What is a star ratchet hub?
A star ratchet hub is a robust and reliable hub design which distributes the load of your eBike's motor across 36 points-of-contact opposed to the 4-6 points-of-contact on a pawl based hub.
This addresses a common point of failure for many regular hubs where the pawls will break or strip the race in the hub causing the power to no longer be transferred to the rear wheel. The even distribution of power between the star ratchet teeth ensures a smooth and reliable drivetrain.
No Tool Construction
The star ratchet hub can be assembled and disassembled with no tools, resulting in easy access to bearings, freehub body replacements, and configuration between 190m and 197mm.
Technical Specifications
Axles Supported
12mm Thru Axle (5mm QR if purchased with Adaptor)
Spokes Included
40 Uncut, 14G Spokes and Nipples Included
Freehub
HG Style
Cassette Compatibility
9, 10, 11 Speed
Width
Adjustable Between 190mm, 197mm
Spoke Hole Count
32/36
Compatibility
| Bike Name | 36 Hole | 36 Hole with 5mm QR Adaptor |
|---|---|---|
| Juggernaut Ultra FS | ||
| Juggernaut Ultra 1000 w/Rear Thru Axle | ||
| Juggernaut Ultra Duo 2 Step-Over | ||
| Juggernaut Ultra FS Pro 2/3 | ||
| Juggernaut Ultra FS Pro 1 26x4 Fat-Tire Version | ||
| Juggernaut Ultra Beast 1/2 | ||
| Monte Capro Ultra 1/2 26x4.8 Fat-Tire Version | ||
| Juggernaut Ultra Duo 3/Pro/4 | ||
| Juggernaut HD Duo | ||
| Juggernaut Ultra FS Pro 1 27.5x3 Boost Version | ||
| Juggernaut Classic Duo | ||
| Monte Capro Ultra 1/2 27.5x3 Boost Version |
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Customer Reviews
Based on 22 reviews
73%
(16)
14%
(3)
5%
(1)
0%
(0)
9%
(2)
G
As many know by now, Sondors LX hubs are…less then optimal. Mine failed at 768 miles. The Wren ratchet hub is well reviewed and I’m aware of other Sondors installations so I purchased one.
Not being an avid biker I wasn’t aware of all the axle permutations but eventually concluded I could reuse the Sondors LX axle if I turned down the 14mm center section to the 12mm diameter of the ends. Worked perfectly, I’m back on my bike with confidence that my hub problems are past.
M
I have a Juggernaut Ultra FS Pro 3 and mainly use it off road. I should have upgraded to the Wren Star Ratchet Rear Hub right when I bought it but I didn’t. After a year off road riding I stripped the standard hub. The guys at Biktrix were awesome at getting me fixed up with a new rim with the Wren Hub laced into it. Had me back in operation in just over a week including shipping awesome job guys! The Wren Hub is a must have in my eyes for this bike especially if you use it off road like I do. Much, much stronger hub! 👍
B
Get one when you order your bike, the 1,000 Watt motor will wear out the original one in about 600 miles or so, and this may depend on the type of riding you do. I ride off road up and down mountains. They got me a new hub and wheel in about a week. Thanks bike people for getting the parts that I need to the USA, asap. 😊✌️🤙
M
So far the Wren Ratcheting freehub seems rock solid. If I had known the standard freehub would fail, I would’ve ordered it as an upgrade when I ordered my Jugg Ultra Duo.
T
Received my new rear hub and first thing I noticed was it appeared to be a far superior hub than the original rear hub that comes on the bike. Installs was a bit challenging as there were a couple extra parts (I come to realize they were different size spacers) and no directions as to what they were for. But after figuring it out and changing to the proper spacer it went together easily. Been back riding for over a week now and definitely rides smother and fixed my grinding issue from the bad hub I had. Thanks to the team for getting the part out to me quickly, so I had minimal down time.
T
After 7800 miles my original hub finally stripped out from years of rough desert trails. I was excited to find out that Biktrix had a much superior rear hub for replacement. I ordered the hub, with new spokes and new rim, all put together by Biktrix for a great price. The new Ratchet hub sounds and performs great. Now I am back climbing mountain trails again.
T
Blew out my original hub. Got the Wren star ratchet hub. Had a good bike shop install it with new spokes and a new tire set to boot. The mechanic commented on the quality of the hub and said I’ll probably never have another blow out. I was nervous about the fit but Biktrix had me send photos and measurements and everything fit fine.
J
Wren hubs are the way to go with powerful e-bikes.
J
I’m in my 5th year riding my Ultra. I have broken by stock hub by Oliver stressing it. The prawns can’t take my power and the 1,000 watt motors after a few hundred hard claims. So for peace of mind I bought the WREN. Now I think it’s in breakable. They have 20 teeth where the stick buns have 6 prawns. If you are a hill climber I think you should consider it.