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Shop | Components | Drivetrain | Chain Keepers | Chain Keeper

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Chain Keeper

The Chain Keeper is a guide to keep your chain right where it belongs. Mounted in place of a front derailleur, the Chain Keeper works with single chain ring drivetrains using a narrow chain. The chain block surrounds the chain as it meets the chain ring and prevents it from skipping off.

Clear

Technical Information

  • Material
    6061 Aluminum
  • Weight
    69g
  • Finish
    Anodized
  • Anodized Color
    Black, Purple, Silver
  • Clamp Size
    28.6mm, 31.8mm, or 35.0mm ↓

    The clamp diameter is the outside diameter of the seattube. The seattube must be circular in profile where the Chain Keeper attaches.

    28.6mm is equivalent to 1-1⁄8".
    31.8mm is equivalent to 1-1⁄4".
    35.0mm is equivalent to 1-3⁄8".
  • Chainline Range
    34-55mm

Product Story

The Chain Keeper clamps on to the seat tube of the frame. The portion of seat tube where the clamp mounts must have a circular profile and a diameter of 28.6, 31.8, or 35.0mm, (+/-0.5mm).

Designed with adjustability in mind, the Chain Keeper can accommodate a range of chainline measurements and chain ring sizes.

Note: This is not designed for downhill, freeride, or big hit use.

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Instagram post 2228615473897386886_25667512 Let’s talk about Pass & Stow racks! When we built the #SierraKlunker last year we asked @passandstowracks if he’d be interested in building us a rack for it and dang were we impressed! How can a structure so light be so solid?! With tubular hand-brazed construction and obsessive attention to detail, with features like: light mount, internal dynamo cable routing, water bottle braze-ons, and the ability to run panniers on the lowers make this the REAR DEAL for everything from city shlepping to hard-core mountain touring. We love that Matt takes his piles of boxed finished racks to the post office via cargo bike too! So you know when we started brainstorming the #SierraExplorerBike build one of the first things we thought of was “It’ll need a Pass and Stow!”
Instagram post 2227875551410204774_25667512 LETS TALK ABOUT KLAMPERS! 1. We’ve been making these brakes for 5 years now, and they’ve proven themselves all over the world, from desert touring to Sierra Nevada dusty downhills to icy Alaskan glaciers. Being-cable actuated, you don’t need any fluids or bleed kits or special tools. Bolt em on, break em in and enjoy the reliability. 2. The actuator arms are swappable between short-pull, long-pull, and Campy-pull. Gravel, mountain, road: pick a bike, these will work. 3. Available in Post-Mount and Flat-Mount. Cable tension can be adjusted on the caliper with the built-in barrel adjuster. 4. Here’s where the Klampers get their ⚡️POWER⚡️. Oversized bearings ride in the CNC machined races of our heat-treated steel pistons. 🦾 5. Instead of a plastic thrust washers we use flat needle roller thrust bearings. 6. We ship these brakes with USA made @koolstopusa pads but they’ll work with any brand that fit the most common Avid/SRAM Elixer pad shape, easy to find at most bike shops for convenience sake. 7. Pad adjusters are adjustable independently and tool free. 8. Machined to the highest tolerances by us right here in Chico California by total BIKE NERDS. 9. We don’t generally encourage people to completely disassemble their brakes like this (you shouldn’t need to!) but this does show how simple and field serviceable these brakes really are with nothing but a good multitool. Thanks for looking! 👀! ✌️
Instagram post 2227139466140848826_25667512 We always have love for a good Surly build! #Repost @outer.shell ・・・ “Y’all remember when @surlybikes first released the Cross Check? Such an affordable, steel, do-everything frame. Paired perfectly as the “practical bike” alongside that NJS track frame back in 2008 right?? I bet some of you still have one around! . This stunning example was built (and photographed) by @dirtdrops for his partner, with some sweet purple bling from our friends at @paulcomponent 😍”
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Instagram post 2222207685931347279_25667512 •Part 2 of 2• Holy smokes, the #SierraExplorerBike fabrication is UNDERWAY! When @sierranevada asked us if we’d build them another sweet bike to show off at @seaotterclassic (and then give away) we said “Heck yeah!”. Then we asked our buddy Tyler at @btchn.bikes here in Chico if he wanted to build us a rad #BikePacking frame and he said “Hell YES!” and 💣BOOM💥 the project has begun. The torch is LIT👨‍🏭 and in these photos Tyler is installing bottle braze-ons and brazing the front triangle, then brazing the chainstays, then chainstays to dropouts, while checking alignment along the way on his NECA frame alignment table. Feel free to ask questions in the comments below🗣, and stay tuned for more process photos! 📺🍿
Instagram post 2222142469789144008_25667512 •Part 1 of 2• Holy smokes, the #SierraExplorerBike fabrication is UNDERWAY! When @sierranevada asked us if we’d conjure up another sweet bike to show off at @seaotterclassic (and then give away) we said “Heck yeah!”. Then we asked our buddy Tyler at @btchn.bikes here in Chico if he wanted to build us a rad #BikePacking frame and he said “Hell YES!” and 💣BOOM💥 the project has begun. Here he is using wooden blocks to get some seatstay bends exactly how he wants em. Feel free to ask questions in the comments below🗣, and stay tuned for more process photos! 📺🍿
Paul Component Engineering
  • info@paulcomp.com
  • 530–345–4371
  • 11204 Midway
  • Chico, CA 95928
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