Add-On Bike Rack Extension for 4187 E-Bike Rack, 100 LBS Capacity for 2 Bikes, Fits 5" Fat Tire, Steel-Aluminum Build — NOT a Standalone Rack, Frame Extension Only

• EXPANDS YOUR 4187 RACK BY 2 BIKES: Designed exclusively as an add-on for the 10104187 main rack, this extension lets you carry up to 2 additional bikes. Total add-on capacity is 100 lbs. Perfect for family trips, group rides, and longer outings when one rack isn't enough.
• 100 LBS CAPACITY  BIKES ONLY: Carries 2 standard bicycles within a 100 lb total limit. Not rated for e-bikes, heavy-duty bikes, motorcycles, or cargo bikes — for those, use the main 4187 platform.
• 3" FAT TIRE COMPATIBLE: Wheel cradles accommodate tires up to 3" wide, matching the fit profile of the base module so your full setup stays consistent.
• UPGRADED ANTI-WOBBLE & ANTI-SCRATCH: Reinforced bolt connections and shock-absorbing threads eliminate sway between the main rack and the extension. Soft padding, rubber covers, and premium tie-down straps keep every bike scratch-free.
• PREMIUM STEEL-ALUMINUM BUILD: High-strength aluminum and steel frame with professional anti-rust coating. Tested against salt, rain, snow, and extreme weather — built to match the durability of your base module.
• HASSLE-FREE SETUP: Ships with complete mounting hardware and step-by-step instructions. Snaps onto your existing base module in minutes.
• DEPENDABLE SUPPORT: Backed by 1-year warranty, spare parts coverage, and responsive aftersales team. Need the base module first? Find it under our E-Bike Racks collection.
  

We understand the importance of timely delivery, and we strive to process and ship your orders efficiently.

Please allow 1-2 business days for your order to be processed and shipped.

Once your order has been shipped, you will receive an email containing tracking information.

Shipping Area:

We currently offer shipping services within the United States and Canada.

Shipping Method & Fees:

U.S.

Shipping Time:

Shipping time is estimated and commences from the shipping date, not the order date.

• Standard shipping typically takes 5-7 business days for delivery.
• Expedited shipping typically takes 3-5 business days for delivery.

Order Delay:

Should your delivery exceed the promised time, please don't hesitate to contact us at support@outfitrer.com.

We will investigate the cause of the delay and take appropriate action, which may include compensation or a resend of your order.

For any other inquiries, please feel free to contact us at support@outfitrer.com.