Description
Comparison points and tradeoffs
When comparing PowerMotor 13mm 0.51′ Axle Block,CNC Chain Tensioner Adjuster Repalcement for Surron Light Bee S X Segway X160 X260 Electric Dirt Bike Ebike-Silver with other Axle Blocks options, use this source-backed detail as the primary discriminator: 【Package】2*Chain Tensioner.
Use this second fact to evaluate the tradeoff: 【Size】—Product length: 74mm/2.91″; —Product width: 28mm/1.10″; —Bolt diameter (shaft hole): 13mm/0.51″.Please pay attention to whether the size matches your needs when purchasing. A third point to compare across alternatives is: 【Material】Axle block is made of 6061 T6 aluminum alloy, which is lighter but stronger, not easy to break due to impact, and not easy to rust and age.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
13mm 0.51″ Axle Block,CNC Chain Tensioner Adjuster Repalcement for Surron Light Bee S X Segway X160 X260 Electric Dirt Bike Ebike
Source product highlights
- 【Fitment】Off-road axle block chain adjuster for Sur Ron X Sur Ron S Segway X160 X260.
- 【Size】—Product length: 74mm/2.91″; —Product width: 28mm/1.10″; —Bolt diameter (shaft hole): 13mm/0.51″.Please pay attention to whether the size matches your needs when purchasing.
- 【Material】Axle block is made of 6061 T6 aluminum alloy, which is lighter but stronger, not easy to break due to impact, and not easy to rust and age.
- 【Marking Scale】Laser marking scale for precise positioning and adjustment of chain tension, corresponding to the scale on the vehicle’s rear fork to ensure that the left and right sides are flush.
- 【Package】2*Chain Tensioner.

Grp333 –
These adjusters are a must have upgrade for your e-moto. Makes chain adjustments a breeze. Especially when out on the trail. I have multiple bikes with other popular brand adjusters, and these are just as good if not better. The materials are high quality. Machining is flawless and tolerances are tight. Adds a bit of bling as well. Fits multiple brands of bikes.
Mitch –
I replaced my original axle blocks on my Surron LBX with these upgraded ones. I like these new ones way better than the stock ones. They feel much stronger and more heavy duty and they are easier to align because of the clearly marked white notches on the side. These axle blocks probably use twice as much metal than the stock ones do which makes them feel way sturdier. It also comes with axle tensioner bolts which lock into the blocks for a more stable configuration. Adjusting them is super easy.If you get these, I would highly recommend putting some anti-seize on the axle tensioner bolts so they don’t corrode to the aluminum threads of the swingarm. This will save you a lot of trouble down the road.Overall, I’m super happy with these axle blocks. They fit my Surron light bee perfectly and I tested them on an E-ride pro SS 2.0 which they fit as well. They look great, feel great, and work great. They also fit my axle bolt well and aftermarket axle nut. I ordered some of these a couple years ago to use on my first surron and they were a lot more expensive back then. The price on these has come down a lot and now they cost about as much as the OEM replacement ones do. Considering that, these are a great deal and definitely a worthwhile upgrade.