Upgrade your ride with the Ibis Send 1 and 2 bicycle rims, a refined evolution of the acclaimed S35 model. The Send 1 rims feature a sleek, box-shaped bead wall design, while the Send 2 rims take it a step further with reinforcing ribs beneath the bead seat, adding just 45 grams per rim—lighter than many tire inserts.
This innovative bead shape ensures a broad, stable contact point with the tire, effectively preventing pinch flats without slicing the tire sidewalls or adding unnecessary weight. Constructed from 6061 aluminum, both rims offer a minimalist section height of 17mm, providing an ideal balance of strength and lightness. The 5mm spoke offset enhances wheel strength and alignment, and the rims are rated for a maximum pressure of 40 psi. Backed by a seven-year warranty, the Ibis Send 1 and 2 rims deliver durability and reliability for all your cycling adventures.
Ibis Blackbird Send I & II 27.5" AL Specs
| Internal Rim Width: | 35mm |
| Outer Rim Width: | 44mm |
| Height: | 17mm |
| ERD: | 566mm, 5mm offset |
| Hole: | 32, optimized for three cross lacing |
| Tire Width: | 2.35" - 2.80" |
| Max PSI: | 40 psi (2.75 Bar) |
| Weight: | 543 grams (Send 1), 590 grams (Send 2) |
Ibis Blackbird Send I & II 29" AL Specs
| Internal Rim Width: | 35mm |
| Outer Rim Width: | 44mm |
| Height: | 17mm |
| ERD: | 604mm, 5mm offset |
| Hole: | 32, optimized for three cross lacing |
| Tire Width: | 2.35" - 2.80" |
| Max PSI: | 40 psi (2.75 Bar) |
| Weight: | 565 grams (Send 1), 625 grams (Send 2) |
Please reach out to us with any questions you may have on anything we sell. We want to make sure you get the right items the first time. Our lifelong riders at Thunder Mountain Bikes are knowledgeable and would love to talk to you!
Shipping
We currently offer both economy and expedited shipping options though FedEX and USPS.
Orders totaling over $59 are eligible to ship for free via an economy ground option of our choice.
Most bikes ship free within the continental US. Bike shipping to AK, HI, or PR is $250.
If you're in need of something super-quick, please contact us directly. We may be able to overnight your order with an additional fee and depending on your location.
RETURNS
Should there be an issue with the item you bought, or you no longer need your purchase, we will be happy to set up a return.
Component & Gear Returns
Returns may be requested within sixty (60) days of the delivery date. All returned items must be received in new, unused, and uninstalled condition, with the original tags and labels attached and in the original packaging. We cannot accept returns on any items installed or show wear of any kind.
Bike Returns
Returns or exchange requests for bikes must be requested by emailing us at sedona@thundermountainbikes.com within fifteen (15) days from the date of delivery. Bikes must be in un-ridden condition. Custom-built bikes may not be returned. Returned bikes have a $200 restocking fee and the customer pays for return shipping.
Return Shipping
Customers may choose to use our provided flat-rate return shipping label at $9, or choose a carrier of their choice to handle their product return.
The $9 flat rate label will be deducted from the refund issued for the return. You can either print this label after requesting a return from the Order History in your Account profile, or you can request that we email you the label.
For all other return shipping methods, please email us at sedona@thundermountainbikes.com after submitting your return request so that we can confirm the shipping information you should use to return your item(s).
REFUNDS
We will process your return after we receive your returned item(s) and inspect the condition. Please allow at least seven (7) days from the receipt of your item to process your refund. We will notify you by email when your return has been processed.
EXCEPTIONS
If you receive defective or damaged products or if we sent you the wrong products, please contact us using the phone number or email below.
RETURN PROCESS
To request a return, please log in to your customer account by clicking the 
Profile icon in the top right of any page or visit account.thundermountainbikes.com.
1. In the Email field, enter your email address and click Continue.
2. In your email account, open the email sent from our store and copy the six-digit verification code included in the email.
3. Go back to the online store and enter a six-digit verification code to log in.
4. Find and click on the order that you want to submit a return for.
5. If your order has more than one item, select only the items you want to return.
6. Select a return reason and add a note for the store if needed.
7. Click Request Return.
Once your return request is approved, you will receive an email with shipping instructions and a return shipping label.
QUESTIONS ABOUT RETURNS?
If you have any questions concerning our return policy, please contact us at:
