--- product_id: 614779061 title: "Ebike Crank Arm Available in Diamond Hole | 89MM/102MM/114MM/127MM/140MM/152MM/160MM/165MM/170MM/175MM for Electric Bike/Commuter Bike/Exercise Bike/Fat Bike" brand: "alps2ocean" price: "€ 77.82" currency: EUR in_stock: true reviews_count: 13 category: "Alps2 Ocean" url: https://www.desertcart.hr/products/614779061-ebike-crank-arm-available-in-diamond-hole-89mm-102mm-114mm store_origin: HR region: Croatia --- # 10 size options - perfect fit Diamond Hole interface - secure torque Forged Alloy 6061 - ultra durable Ebike Crank Arm Available in Diamond Hole | 89MM/102MM/114MM/127MM/140MM/152MM/160MM/165MM/170MM/175MM for Electric Bike/Commuter Bike/Exercise Bike/Fat Bike **Brand:** alps2ocean **Price:** € 77.82 **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Upgrade your pedal game with precision and power! ## Quick Answers - **What is this?** Ebike Crank Arm Available in Diamond Hole | 89MM/102MM/114MM/127MM/140MM/152MM/160MM/165MM/170MM/175MM for Electric Bike/Commuter Bike/Exercise Bike/Fat Bike by alps2ocean - **How much does it cost?** € 77.82 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/614779061-ebike-crank-arm-available-in-diamond-hole-89mm-102mm-114mm) ## Best For - alps2ocean enthusiasts ## Why This Product - Trusted alps2ocean brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Tailored to Your Ride:** Choose from 10 precise crank arm lengths (89mm to 175mm) to optimize your pedaling efficiency and comfort. - • **Versatile Compatibility:** Designed specifically for e-bikes with mid-mounted motors, but single arms also fit MTB, road, folding, cargo, and city bikes. - • **Engineered for Endurance:** Crafted from high-strength Forged Alloy 6061 for unmatched durability and resistance to deformation. - • **Left & Right Perfect Match:** Clearly marked L/R arms guarantee hassle-free installation and flawless performance on your e-bike. - • **Precision Fit Diamond Hole:** Exclusive 12cm Diamond Hole spindle interface ensures a rock-solid connection with 35–45 N·m torque tolerance. ## Overview The Alps2Ocean Ebike Crank Arm set features forged aluminum alloy 6061 construction for superior strength and durability. Available in 10 sizes from 89mm to 175mm, these crank arms use a 12cm Diamond Hole spindle interface designed for secure torque application (35–45 N·m). Each pair includes left and right arms clearly marked for easy installation, optimized for electric bikes with mid-mounted motors, while single arms also fit various bike types. Perfect for riders seeking a reliable, customizable, and maintenance-friendly crank solution. ## Description desertcart.com : Alps2Ocean Ebike Crank Arm Available in Diamond Hole | 89MM/102MM/114MM/127MM/140MM/152MM/160MM/165MM/170MM/175MM for Electric Bike/Commuter Bike/Exercise Bike/Fat Bike : Sports & Outdoors Review: E-moped problem solver - So I bought one of those new high-power ebikes. It came with a throttle, a cadence sensor, and the worst pedal assist algorithm I've ever felt in my life. I took it for a super fun joyride on dirt at 25mph and laid it out flat when I hit a wet patch, which bent the heck out of the right crank arm. Turns out it came with 120mm crank arms, which are very hard to find, and out of stock at the OEM. So I went looking for literally just a place to put my feet. I found these, and I absolutely love them. I bough them at the 89mm size, though I'd buy them in 0mm if I could. They feel plenty strong, they have superb ground clearance (due to no chainring), and they perfectly fit my standard square taper bottom bracket and standard pedals. If you're looking for literally just somewhere to rest your feet that isn't proprietary nonsense, on your new throttle-equipped ebike, so you can ditch your chain and all the maintenance that comes with it, these'll do you just fine, and for cheap. Review: Received quickly and installed easily. - I converted my recumbent trike to electric two years ago using a Bafang kit through desertcart. No issues with the kit and it's been trouble free. The kit is made for a bicycle, not a trike but it fits well except for having to extend the wiring harness to the speed sensor. The Bafang pedal arms may be better suited to a bicycle than a trike. The arms were very straight and 170mm in length. In order to clear the heel straps that are safety equipment on a Terra Trike, the pedals need to have a curve or arc to them. Alps2Ocean made such a product and work perfectly. I ordered 160mm arms because I sometimes have issues with heel strikes. Doing the math 10mm difference is only 1/4" shorter but that makes a huge difference. I am very pleased with these arms. For reasons I cannot explain they seem to reduce knee and ankle comfort as well. I'm a happy guy. The response time was great as they arrived the next day. Installation was easy as well. Kudos to desertcarts AI which answered many of my questions before purchase. ## Features - 【Material】The Bicycle crank arms are made of Forged Alloy 6061, this crank arm is sturdy and durable,High strength, high hardness, not easy to deform. - 【Size】This Crank Arm Length is available in 10 sizes(89MM/102MM/114MM/127MM/140MM/152MM/160MM/165MM/170MM/175MM/）Shorter cranks for extreme sports enthusiasts,Before purchasing this product, please make sure that the size of this product is consistent with the size you need. - 【Spindle Interface Type】Diamond Hole. Please check if the orientation of your crank is Diamond Hole. Keep both left and right things having the same hole.Diamond Hole Diameter is 12cm.The tightening torque for the crankarm bolts is 35–45 N/m.Do not exceed 45 N·m, or the crank will be damaged. - 【Installation Tips】This crank arm is divided into left and right side, please pay attention to the left and right side when installing, the crank arm is written L and R, L is installed on the left side, R is installed on the right side. L is installed on the left side, R is installed on the right side. If you install it wrong, it will not work.Special attention:one pair Crank Arm can only be used on electric bicycles,1pc crank arm can be used on MTB,ROAD BIKE,FOLIDING BIKE,Cargo,City Bike,Ebike. - 【Package List】2xCrank Arms(left crank arm +right crank arm),Crank Bolts,Crank arm only for Ebike,Mid Mounted Motor,Torque. ## Technical Specifications | Specification | Value | |---------------|-------| | Item Package Dimensions L x W x H | 9.29 x 8.43 x 3.07 inches | | Package Weight | 1.43 Kilograms | | Item Weight | 0.58 Kilograms | | Brand Name | Alps2Ocean | | Warranty Description | 1 Year | | Model Name | Diamond-Crank | | Color | A Pair Crankarm 170mm | | Material | Aluminum | | Suggested Users | unisex | | Manufacturer | Alps2Ocean | | Included Components | 2x crank arms, crank bolts | ## Images ![Ebike Crank Arm Available in Diamond Hole | 89MM/102MM/114MM/127MM/140MM/152MM/160MM/165MM/170MM/175MM for Electric Bike/Commuter Bike/Exercise Bike/Fat Bike - Image 1](https://m.media-amazon.com/images/I/71jXeQwQnrL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ E-moped problem solver *by S***E on December 9, 2025* So I bought one of those new high-power ebikes. It came with a throttle, a cadence sensor, and the worst pedal assist algorithm I've ever felt in my life. I took it for a super fun joyride on dirt at 25mph and laid it out flat when I hit a wet patch, which bent the heck out of the right crank arm. Turns out it came with 120mm crank arms, which are very hard to find, and out of stock at the OEM. So I went looking for literally just a place to put my feet. I found these, and I absolutely love them. I bough them at the 89mm size, though I'd buy them in 0mm if I could. They feel plenty strong, they have superb ground clearance (due to no chainring), and they perfectly fit my standard square taper bottom bracket and standard pedals. If you're looking for literally just somewhere to rest your feet that isn't proprietary nonsense, on your new throttle-equipped ebike, so you can ditch your chain and all the maintenance that comes with it, these'll do you just fine, and for cheap. ### ⭐⭐⭐⭐⭐ Received quickly and installed easily. *by J***N on May 28, 2026* I converted my recumbent trike to electric two years ago using a Bafang kit through Amazon. No issues with the kit and it's been trouble free. The kit is made for a bicycle, not a trike but it fits well except for having to extend the wiring harness to the speed sensor. The Bafang pedal arms may be better suited to a bicycle than a trike. The arms were very straight and 170mm in length. In order to clear the heel straps that are safety equipment on a Terra Trike, the pedals need to have a curve or arc to them. Alps2Ocean made such a product and work perfectly. I ordered 160mm arms because I sometimes have issues with heel strikes. Doing the math 10mm difference is only 1/4" shorter but that makes a huge difference. I am very pleased with these arms. For reasons I cannot explain they seem to reduce knee and ankle comfort as well. I'm a happy guy. The response time was great as they arrived the next day. Installation was easy as well. Kudos to Amazons AI which answered many of my questions before purchase. ### ⭐⭐⭐⭐⭐ Good product *by B***M on August 10, 2026* Well made, well finished, good replacement arms at a good very good price. Excellent for TSDZ2 replacements. ## Frequently Bought Together - Alps2Ocean Universal Bike Crank Arms,89MM/102MM/114MM/127MM/140MM/152MM/160MM/165MM/170MM/175MM Available in Diamond Hole Bike Crank Arm for City Bike,Folding Bike,MTB,Ebike,Road Bike,Exercise Bike - Skylety Crank Remover Bicycle Crank Puller Bike Crankset Crank Arm Puller Compact Crank Puller Cycling Power Pull Crank Pulley Tool Repair Maintenance Remover for Bikes, Black - Hapleby Premium Bike Pedals of 9/16 Inch, Professional Mountain and Road Bike Flat Pedal with 2 Sealed Bearings, Wide Paltform and Lightweight of Bicycle Pedals, Come with Pedal Wrench 1PCS --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/614779061-ebike-crank-arm-available-in-diamond-hole-89mm-102mm-114mm](https://www.desertcart.hr/products/614779061-ebike-crank-arm-available-in-diamond-hole-89mm-102mm-114mm) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-14*