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⚡ Ride Hard, Ride Simple — The Ultimate Tension Seeker for Fearless Riders
The DMR Simple Tension Seeker is a lightweight (103g), stainless steel chain tensioner designed for aggressive riding styles like Street, Dirt Jumping, and Trials. It converts geared bikes to single speed quickly by fitting most vertical dropouts, featuring a durable PU pulley with sealed bearings for long-lasting performance and easy chain tension adjustment.
| ASIN | B001GSKORE |
| Brand | DMR |
| Customer Reviews | 4.3 out of 5 stars 231 Reviews |
| Item Weight | 0.12 Pounds |
| Load Capacity | 4E+2 lbf (1779 N) tensile load capacity |
| Load capacity | 4E+2 lbf (1779 N) tensile load capacity |
| Manufacturer | Upgrade |
| Manufacturer Part Number | DMR-TENS-SIMP-TWN |
| Material | Metal |
| Model Number | DMR-TENS-SIMP-TWN |
| Recommended Uses For Product | Street, Dirt Jumping and Trials |
| Recommended uses for product | Street, Dirt Jumping and Trials |
| Specification Met | [Inferred] Meets Certain Quality and Performance Standards in the Bicycle Industry |
| Specification met | [Inferred] Meets Certain Quality and Performance Standards in the Bicycle Industry |
| Strand Type | Single |
| Tensile Strength | 50 Pounds Per Inch |
| Unit Count | 1.0 count |
G**N
Simple fix
Simple and easy to set up 👍🏻
V**1
DMR TENSION
Good bit of kit thankyou
B**S
Good.
Good.
M**L
Mr timmy
It literally worn out in two seconds the rubber wheel
J**Y
Dmr
Great item. Fit as should . Works perfectly. Thank you
N**N
Make sure it's the right fitting as even if it says universal it's clear isn't.
The product says it's for MTB but doesn't fit any fitting for some down hill bikes even though it say universal .
S**O
Doesn't hold up long term
Red nylon part has lasted about 3 months don't buy this if you actually use your bike
J**N
Old Skool Cool
Set my old Giant up as single speed. DMR, a blast from the past, works well with plenty of adjustment. All good.
J**N
Easy to install and adjust
I have used several methods to tension chains on single-speed bicycles and they all have problems. This one, though, worked with no issues or fiddly adjustments. There is no spring--you set the tension by pushing it up or down onto the chain and tightening up the bolts. The roller finds its alignment with the chain after a few spins of the cranks. An argument could be made that a spring system adjusts as the chain stretches; however, if that happens it is simple to readjust the tension (5mm Allen key required) and ride on. I image this would only happen once during the life of the chain. I installed it in about 10 minutes and used the rest of my free time to go on a bike ride. If it develops problems, I'll update this review.
一**店
シングル化必需品
クロスバイクのシングル化で購入しました。チェーン幅が876スピードなので、1スピードチェーンはローラーに収まらず少し残念だけど、立ち漕ぎ激チャでも固定安定して満足です。
G**E
Expensive
Buy a knockoff ,cheap
S**M
Well made.
First thing I noticed is this tensioner felt solid. I converted a vintage mountain bike to single speed and needed to take up the chain slack since the frame wasn’t horizontal drop outs. Worked out perfectly paired with a single speed cog and spacer kit. There is a slight negative….no instructions….but it was easy to “figure out”. Happy to be ripping around again. Enjoy the ride!
ト**ボ
しっかり機能します
しっかり機能します。強度も良さそう。見た目もgood
Trustpilot
2 months ago
2 weeks ago