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Shipping Estimate
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- USA
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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
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Description
fitnessbike speed CTRComponent Specification Frame ROCKBROS 700C Carbon Fiber Frame Front Fork ROCKBROS Carbon Fiber Fork Handlebar Integrated Carbon Fiber Aero Handlebar Stem Integrated Carbon Fiber Aero Stem Saddle DDK Saddle Seatpost Carbon Fiber Seatpost Shifters ShunTai 212 Speed Shifters Derailleurs ShunTai 212 Speed Derailleurs Cassette 12 Speed 1132T Freewheel Brakes ShunTai Hydraulic Disc Brakes with 160mm Rotors Crankset Driving Hollow Crankset 170mm 50 34T Rims
| Component | Specification |
|---|---|
| Frame | ROCKBROS 700C Carbon Fiber Frame |
| Front Fork | ROCKBROS Carbon Fiber Fork |
| Handlebar | Integrated Carbon Fiber Aero Handlebar |
| Stem | Integrated Carbon Fiber Aero Stem |
| Saddle | DDK Saddle |
| Seatpost | Carbon Fiber Seatpost |
| Shifters | ShunTai 2×12-Speed Shifters |
| Derailleurs | ShunTai 2×12-Speed Derailleurs |
| Cassette | 12-Speed 11–32T Freewheel |
| Brakes | ShunTai Hydraulic Disc Brakes with 160mm Rotors |
| Crankset | Driving Hollow Crankset 170mm × 50/34T |
| Rims | 700C Carbon Fiber Rims, 40mm Depth |
| Hubs | Aluminum Alloy Sealed Bearing Hubs |
| Spokes | 14G High-Carbon Steel with Brass Nipples |
| Tires | Innova 700C × 28C F/V Tires |
| Weight | ≈ 8.98 kg (M Size) |
CTR ShunTai vs CTR Shimano 105 — Shifting & Braking System Comparison
| Feature | CTR ShunTai Version (2×12 Speed) | CTR Shimano 105 Version (2×12 Speed) |
|---|---|---|
| Shifters | ShunTai integrated hydraulic shifters with a slightly heavier, mechanical feel. Shifting travel is longer but crisp and reliable. | Shimano 105 R7120/R7170 dual control levers with refined ergonomics. Smooth, light, and highly precise shifting response. |
| Shifting Mechanism | Traditional cable-actuated system, with minor delay between front and rear derailleurs. | Advanced Shimano mechanical or electronic system (depending on setup) for faster, more accurate gear changes. |
| Brake Type | ShunTai hydraulic disc brakes using mineral oil. Strong braking power but firmer lever feel. | Shimano 105 hydraulic disc brakes with mineral oil. Smooth, linear braking power with excellent modulation and heat control. |
| Brake Calipers | Aluminum dual-piston design, simple and easy to maintain. | Shimano BR-R7170 (or similar) dual-piston calipers with high heat dissipation and consistent braking. |
| Brake Pads & Hoses | Uses standard mineral oil and compatible aftermarket pads. | Shimano original mineral oil and pads, offering longer lifespan and higher compatibility. |
| Maintenance | Easy and low-cost maintenance. | Longer service life but higher maintenance cost. |
| Riding Feel | Suitable for daily commuting and entry-level riders. | Ideal for intermediate to advanced riders seeking superior shifting and braking control. |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 4
Good quality
Color: Regular-light Pink, Size: 14 Inch
Good quality and value for your money. The fabric is soft and the right storage capacity for my 14” laptop!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
★★★★★ 5
Great value
Color: Upgrade-champagne Brown, Size: 17.3 Inch
Perfect backpack for traveling. Love how it looks, the compartments are great. Easy to store for your next travels.
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Comfy and supportive
Love it! Very snug and supportive. I am 5‘6“ 188 pounds. I am wearing a 34H and it fits perfect. Will definitely be adding more colors to my collection. Hopefully they add the HSIA Delia collection that are similar to these, but have printed options.
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Good value, fantastic fit
Color: Grey Purple, Size: 38D
Very comfortable lingerie, gives a smooth look under clothing. Very satisfied with this purchase. I have purchased bras at higher price point, these are comparable. Good quality and value for the money.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Very Good strong material
I love the bra but story time,
I initially got a 38DDDwhich is or was my size however I wore the 38DDD all day at work (RN) and the bra did hurt my sides like the sides were possibly too tight and digging into my ribs BUT the support was amazing and the minimizing was PERFECT I looked almost 2 cups sizes smaller in my opinion but I figured something was off so I ordered a 40DDD got those and the side digging wasn’t there but I lost a little bit of support maybe or I could have just done the straps wrong because it was a quick try on but overall I love the slimming effect and the material is soft and I truly appreciate this bra. The material is STRONG not cheaply made very beautiful over all. This is a good quality bra once I figure out the correct size . I ordered another 38G to see if I noticed a difference and a 40G to see if my cup size is wrong all together (which is what I think it is more so than the band size)
I tried another brand and the 38 band was find the cup was too small in 3 different brands. Guess I’ve gained some weight but overall even with the pain for the side digging I could tell this was a GREAT bra. Just measure yourself correctly lol
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Reviewed in the United States on May 21, 2026
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