--- product_id: 343120382 title: "BAFANG Crank Arm 170mm Electric Bicycle Diamond Hole Crank Mid Motor Cranks Essential Parts Mid Motor Accessory BBS01 BBS02 BBSHD Electric Bikes Part E Bike Crank Leg" brand: "bafang" price: "$61.61" currency: USD in_stock: true reviews_count: 5 category: "Bafang" url: https://www.desertcart.us/products/343120382-bafang-crank-arm-170mm-electric-bicycle-diamond-hole-crank-mid store_origin: US region: United States of America --- # Diamond hole interface 170mm precision length Durable aluminum alloy BAFANG Crank Arm 170mm Electric Bicycle Diamond Hole Crank Mid Motor Cranks Essential Parts Mid Motor Accessory BBS01 BBS02 BBSHD Electric Bikes Part E Bike Crank Leg **Brand:** bafang **Price:** $61.61 **Availability:** ✅ In Stock ## Summary > ⚡ Power your ride with precision and durability! ## Quick Answers - **What is this?** BAFANG Crank Arm 170mm Electric Bicycle Diamond Hole Crank Mid Motor Cranks Essential Parts Mid Motor Accessory BBS01 BBS02 BBSHD Electric Bikes Part E Bike Crank Leg by bafang - **How much does it cost?** $61.61 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/343120382-bafang-crank-arm-170mm-electric-bicycle-diamond-hole-crank-mid) ## Best For - bafang enthusiasts ## Why This Product - Trusted bafang brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Diamond Hole Interface:** Innovative diamond hole design guarantees a secure, wobble-free connection every time. - • **Side-Specific Installation:** Right side drive and left side reverse-threaded pedals prevent installation errors and enhance safety. - • **Robust Aluminum Alloy Build:** Engineered for strength and longevity, ensuring your e-bike stays ride-ready season after season. - • **Optimized for Versatile Riding:** Perfect for road, gravel, trail, and commuting e-bikes—upgrade your ride with confidence. - • **Precision Fit for BAFANG Motors:** Seamlessly compatible with BBS01, BBS02B, and BBSHD mid-drive kits for flawless power transfer. ## Overview The BAFANG Crank Arm set features a 170mm hole spacing length with a diamond hole interface, crafted from durable aluminum alloy. Designed specifically for BBS01, BBS02B, and BBSHD mid-drive electric bike motors, it ensures a perfect fit and reliable performance. The right crank is drive-side with standard threading, while the left is reverse-threaded for secure pedal installation. Ideal for adult electric bikes across multiple terrains, this crank set combines strength, precision, and ease of use. ## Description This is a replacement straight crankarm (no offset) that is the same as what is shipped with the BBS01 & BBS02 drive units. You must specify a side L or R when ordering. The Right is the drive side and the Left is the non-drive side. You must use the right side crankarm for the correct side of the bikeBe aware when mounting pedals that the left side pedal is reverse threaded so you tighten it backwards (counterclockwise).Drive side is normal, clockwise to install it. Review: These were great for the Hyper mid drive ebike, just what the doctor ordered. Quality seems fine, let’s see how they hold up over time. Should be fine Review: تم ارجاعه واسترعت الاموال بدونه ## Features - The cranks are BAFANG AC-08-2,it can fit with bafang BBS02B/BBSHD mid drive motor kits - Aluminum alloy construction :durable and strong.Diamond interface hole - Length:Hole spacing length:170mm(Please make sure it is the same as your original), total length:210mm - The Right is the drive side and the Left is the non-drive side The left side pedal is reverse threaded so you tighten it backwards (counterclockwise).Drive side is normal, clockwise to install it - Notice:Please check the interface of your original crank arm is diamond hole ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07B7D6VFP | | Additional Features | Electric | | Age Range Description | Adult | | Best Sellers Rank | #80,599 in Sporting Goods ( See Top 100 in Sporting Goods ) #15,267 in Cycling Equipment | | Bicycle Drivetrain Type | mid-drive | | Bicycle Gear Shifter Type | Twist Grip | | Bike Type | Electric Bike | | Brake Style | Disc | | Brand Name | BAFANG | | Color | Black | | Customer Reviews | 4.3 4.3 out of 5 stars (426) | | Electric Assist Type | Electric | | Frame Material Type | Aluminum | | Included Components | E Bike Accessory Kit | | Is Assembly Required | No | | Is Autographed | No | | Item Weight | 408 g | | Manufacturer | BAFANG | | Model Name | bafang crank | | Model Number | Cranks | | Number Of Speeds | 2 | | Number of Handles | 2 | | Power Source | Electric motor | | Size | A Pair Cranks(Left+Right) | | Specific Uses For Product | Electric bikes: Road, Gravel, Trail, Commuting | | Style Name | Modern | | Suspension Type | Rigid | | Theme | No theme | | UPC | 703931072251 | | Wheel Material | Aluminum | ## Product Details - **Age range (description):** Adult - **Bike type:** Electric Bike - **Brand:** BAFANG - **Colour:** Black - **Number of speeds:** 2 ## Images ![BAFANG Crank Arm 170mm Electric Bicycle Diamond Hole Crank Mid Motor Cranks Essential Parts Mid Motor Accessory BBS01 BBS02 BBSHD Electric Bikes Part E Bike Crank Leg - Image 1](https://m.media-amazon.com/images/I/61wko-UxvLL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Do I need to order a crank pull to remove the arm cranks that are on my upright stationary bike?** A: Yes **Q: Will this fit my bowflex c6 crank hole? i need a snug fit for my crank hole** A: Hello,sorry these arm are designed to fit with the bafang motor kit. **Q: Are there shorter crank arms** A: So sorry to tell you that we only have the 170mm bicycle crank **Q: Does this fit bafamg bbshd mid drive motor? i'm seeing ac-08 but not ac-08-2 as is printed on this crank arm.** A: It would fit BBS02 and BBSHD mid-drive motor ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***1 on 10 January 2024* These were great for the Hyper mid drive ebike, just what the doctor ordered. Quality seems fine, let’s see how they hold up over time. Should be fine ### ⭐⭐ Review *by ف***ع on 28 March 2023* تم ارجاعه واسترعت الاموال بدونه ### ⭐⭐⭐⭐⭐ Review *by L***Q on 4 January 2026* Works great. Went on without issue, torqued to spec and no issues ever since ## Frequently Bought Together - BAFANG Crank Arm 170mm Electric Bicycle Diamond Hole Crank Mid Motor Cranks Essential Parts Mid Motor Accessory BBS01 BBS02 HD Electric Bikes Part E Bike Crank Leg - Oumers Bike Crank Extractor/Arm Remover and Bottom Bracket Remover with 16mm Spanner/Wrench. Professional Bicycle Repair Tool Kit - Forest Bykes 8mm Hex Crank arm Fixing Bolt with Caps for Bicycle Crank Arms - Fits Many Cranksets Made by FSA Suntour Prowheel and Many More --- ## 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.us/products/343120382-bafang-crank-arm-170mm-electric-bicycle-diamond-hole-crank-mid](https://www.desertcart.us/products/343120382-bafang-crank-arm-170mm-electric-bicycle-diamond-hole-crank-mid) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-10-19*